Calculus and Above

Calculus Questions? Ask a Mathematician for Answers ASAP

Ask an Expert,
Get an Answer ASAP!

In a survey of 80 gh school football players who committed…

Customer Question
In a survey of 80...
In a survey of 80 high school football players who committed to play in the Division III CCIW conference, 64 said that they would work out in their high school weight rooms in the summer before college. The margin of error for the survey was 6%. A census of all CCIW football players (not just freshmen) showed that 59% worked out at their high schools. One can conclude that:
A. the subjects were less than forthcoming in their responses to the survey.
B. the sample was not representative of the population.
C. there must have been an error in the determination of the margin of error.
D. the census results are consistent with the confidence interval of the study.
A botany student counted 11 blades of grass in one square centimeter of
lawn and measured the lawn as a rectangle 61 m by 31 m. She reported
that there were 208,010,000 blades of grass in the lawn. The precision
of her conclusion:
A. correctly represents her measurements.
B. is less than her measurements warrant.
C. could be greater if she used a more precise calculator.
D. is excessive given her measurements.
The size of an e-mail file is stated as 210 kB, but the file size is actually 220.5 kB. What is the absolute error?
A. 5%
B. 10%
C. 10.5 kB
D. -10.5 kB
Temperatures in degrees Fahrenheit of the ocean at various depths:
A. Ratio
B. Interval
C. Ordinal
D. Nominal
Convert 5.65 to a percent.
A. 565%
B. 5.65%
C. 0.565%
D. 56.5%
A homeowner put a brand-name fertilizer/weed killer on half of his lawn and a generic fertilizer/weed killer on the other half. After three weeks, the generic side had 1 weed per square meter, the other side 1.7 weeds per square meter. The generic side required two mowings in the 3 weeks, the brand-name side one. The homeowner concluded that the generic was superior to the brand-name. Determine which evaluation guideline applies best in questioning the results of the described study.
A. Consider possible confounding variables.
B. Consider the sample.
C. Consider the type of study.
D. Consider the source.
Soft drink sizes: small, medium, large:
A. Qualitative, nominal
B. Quantitative, ordinal
C. Quantitative, ordinal, discrete
D. Qualitative, ordinal
Which is the best fertilizer for Mr. Jimenez’ backyard grass? Select the type of study most appropriate to the question.
A. Experimental
B. Experimental blinded
C. Case-controlled observational
D. Observational
A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The other half of the group is given the same diet without the herb. A nurse at the nutrition center weighs each subject on Friday of each week. Select the potential source of confounding.
A. The placebo effect
B. Method of assignment to treatment and control groups
C. Experimenter effect
D. The study is essentially free of confounding sources
Humanities majors spend an average of $115 per course on books.
Mathematics majors spend an average of $70 per course on books. What is
the percent difference between the two amounts relative to the amount
for mathematics majors (round to the nearest percent)?
A. 64%
B. 39%
C. 50%
D. 42%
A nutritionist wants to conduct a study to validate the efficacy of an herb as an aid in weight loss. She randomly assigns half of a group of overweight persons to a treatment group who are given the herb with instructions for its use and a planned diet for six weeks. The other half of the group is given parsley with the same instructions and same diet. A nurse at the nutrition center weighs each subject on Friday of each week. Select the potential source of confounding.
A. Placebo effect
B. Experimenter effect
C. Method of assignment to treatment and control groups
D. The study is essentially free of potential confounding.
Compared with a stopwatch that gives readings as --. - seconds, a stopwatch that gives readings as --. - - seconds is:
A. more accurate, but not necessarily more precise.
B. more precise and more accurate.
C. not necessarily more precise or more accurate.
D. more precise, but not necessarily more accurate.
Suppose that the cost of a statistics text was $50 in 1985 and is $100 in 2000. What is the ‘Statistics Text Index’ number, rounded to the nearest tenth, for the 2000 edition with the 1985 price as the reference value?
A. 20.0
B. 200.0
C. 50.0
D. 2.0
One month before a recall election, a poll of 500 Wisconsin voters showed that 46% planned to vote for the Democratic challenger Tom Barrett and 45% planned to vote for Republican Governor ***** *****. Undecided voters constituted another 9%. The margin of error was 5 percentage points. What conclusion can you draw from this poll?
A. Barrett will win the election.
B. Walker can’t get over 50% of the votes.
C. The race is too close to call.
D. No one will win.
Which data provide the answer to the question: “How frequently can a student at Eureka College be expected to study more than three hours a day?”
A. Of 100 students surveyed, 43 reported that they study at least three hours a day twice a week.
B. Of 100 students surveyed, 43 reported that they have studied at least three hours a day.
C. Of 100 students surveyed, 43 reported that they studied at least three hours a day twice last week.
D. Of 100 students surveyed, 43 reported that they intend to study at least three hours a day next week.
Compared with a metric scale that has grams as the smallest division, a scale with milligrams as the smallest division:
A. will guarantee measurements that are more accurate, but not necessarily more precise.
B. will guarantee measurements that are more precise and more accurate.
C. will guarantee measurements that are more precise, but not necessarily more accurate.
D. will not guarantee measurements that are more accurate or more precise.
A college student who does laundry infrequently wants to determine the effect of bluing on what should be white clothes. Select the sample most representative of the population.
A. Reports of two friends, one of whom was given bluing
B. The reports of an internet chatroom on laundry techniques
C. Two loads of personal wash, one with, one without bluing
D.
Two loads of wash, one personal, one of a friend, the bluing assigned by
a coin flip
A sample consists of every 49th student from a group of 496 students. Identify the type of sampling used.
A. Systematic
B. Cluster
C. Convenience
D. Random
A poll of 700 persons attending the Taste of Chicago showed that 455 persons, 65% of the sample, believed that the food was overpriced. It is estimated that 1,250,000 persons attend the Taste. Statistics suggest that, although 65% plus or minus 5% of attendees believe that the food is overpriced, the Taste is a popular event. The raw data of the study is (are)
A. 65% of the sample.
B. 700 persons, 455 persons.
C. 1,250,000 persons, 700 persons, 455 persons.
D. (60%, 70%).
Submitted: 2 years ago.Category: Calculus and Above
Show More
Show Less
Ask Your Own Calculus and Above Question
Customer reply replied 2 years ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Answered in 19 minutes by:
3/5/2016
Tutor: Ryan, Engineer replied 2 years ago
Ryan
Ryan, Engineer
Category: Calculus and Above
Satisfied Customers: 9,184
Experience: B.S. in Civil Engineering
Verified

Hi,

Thank you for using the site. I'll be happy to help you with these problems. I'll have the solutions posted for you as soon as I can.

Thanks,

Ryan

Ask Your Own Calculus and Above Question
Was this answer helpful?

How JustAnswer works

step-image
Describe your issueThe assistant will guide you
step-image
Chat 1:1 with a tutorLicensed Experts are available 24/7
step-image
100% satisfaction guaranteeGet all the answers you need
Ask SusanAthena Your Own Question
SusanAthena
SusanAthena
SusanAthena, Master's Degree
Category: Calculus and Above
Satisfied Customers: 102
102 Satisfied Customers
Experience: Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.

SusanAthena is online now

A new question is answered every 9 seconds

How JustAnswer works:

  • Ask an ExpertExperts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional AnswerVia email, text message, or notification as you wait on our site. Ask follow up questions if you need to.
  • 100% Satisfaction GuaranteeRate the answer you receive.

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

What Customers are Saying:

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

Mary C.Freshfield, Liverpool, UK

This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!

AlexLos Angeles, CA

Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, NC

Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.

EstherWoodstock, NY

Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.

RobinElkton, Maryland

He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.

DianeDallas, TX

< Previous | Next >

Meet the Experts:

SusanAthena

SusanAthena

Master's Degree

102 satisfied customers

Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.

Mr. Gregory White

Mr. Gregory White

Master's Degree

99 satisfied customers

M.A., M.S. Education / Educational Administration

Dr Arthur Rubin

Dr Arthur Rubin

Doctoral Degree

58 satisfied customers

Ph.D. in Mathematics, 1978, from the California Institute of Technology, over 20 published papers

JACUSTOMER-yrynbdjl-

JACUSTOMER-yrynbdjl-

Master's Degree

42 satisfied customers

I have a MS in Mathematics and I have taught Mathematics for 10 years at the college level.

dhouse1940

dhouse1940

Master's Degree

33 satisfied customers

BS mathematics, MS biostatistics, 35+ yrs designing & analyzing biological experiments.

Don

Don

Master's Degree

29 satisfied customers

M.S. Astronautical Engineering. Math/Sci/Comp Tutor

mhasan420

mhasan420

Master's Degree

15 satisfied customers

BA Maths, Oxford

< Previous | Next >

Related Calculus and Above Questions
Do y'all charge by the multiple choice question in
Do y'all charge by the multiple choice question in statistics or how much would 10 questions cost… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
420 satisfied customers
Researchers asked a sample of 50 1st grade teachers and a sample
Researchers asked a sample of 50 1st grade teachers and a sample of 50 12th grade teachers how much of their own money they spent on school supplies in the previous school year. They wanted to see if … read more
Chirag
Chirag
Master\u0027s Degree
55 satisfied customers
For ryan. I have one more request about that exam and would
For ryan. I have one more request about that exam and would like to know what's a good time to post it.… read more
Ryan
Ryan
Engineer
9,184 satisfied customers
Can I purchase a statistics homework assignment you provided
*****NO LONGER NEEDED***** *****PLEASE DISREGARD*** May I please have access to the the Stat 100 HW assignment that you have hosted? The mediafire links are set to private. Answer the following questi… read more
Expert
Expert
Researchers asked a sample of 50 1st grade teachers and a sample
Researchers asked a sample of 50 1st grade teachers and a sample of 50 12th grade teachers how much of their own money they spent on school supplies in the previous school year. They wanted to see if … read more
Trigeoscal
Trigeoscal
College Math Professor
Master's Degree
17 satisfied customers
A clinical psychologist notices that admission to the psychiatric
A clinical psychologist notices that admission to the psychiatric hospital she works at seem to vary by season. Using a chi-square test, she rejects the null hypothesis that hospital admission is inde… read more
Math-John
Math-John
660 satisfied customers
1) Which of the following measures of central location is affected
1) Which of the following measures of central location is affected most by extreme values? A. Mean B. Median C. Mode D. Geometric mean 2) Which level of measurement is required for the median? A. Nomi… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
Master's Degree
99 satisfied customers
" For Sandhya Sharma" Please provide feedback on these sample
" For Sandhya Sharma" Please provide feedback on these sample studies. ) 2 Independent groups: Hypnotism is a common intervention for smoking cessation. Dependent variable: smoking cessation (cigarett… read more
Sandhya_sharma
Sandhya_sharma
Master\u0027s Degree
560 satisfied customers
1. (A) Classify the following as an example of nominal, ordinal,
1. (A) Classify the following as an example of nominal, ordinal, interval, or ratio level of measurement, and state why it represents this level: customer ratings of 10 area grocery stores (B) Determi… read more
Sandhya_sharma
Sandhya_sharma
Master\u0027s Degree
560 satisfied customers
A random sample of 1500 adults is taken. Their opinions about
A random sample of 1500 adults is taken. Their opinions about the performance of the President are recorded. True or False: This is a controlled experiment. Answer True False . 1.33 points Question 6 … read more
Ryan
Ryan
Engineer
9,184 satisfied customers
1. (A) Classify the following as an example of nominal,
1. (A) Classify the following as an example of nominal, ordinal, interval, or ratio level of measurement, and state why it represents this level: customer ratings of 10 area grocery stores (B) Determi… read more
Chirag
Chirag
Master\u0027s Degree
55 satisfied customers
1. An insecticide company exposes 10,000 cockroaches to its
1. An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. When the test is completed, the researchers determine the mean elapsed… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
102 satisfied customers
1.The threat of mortality is most prevalent under which condition? a.
1.The threat of mortality is most prevalent under which condition? a. Validity is questionable. b. Data collection occurs repeatedly over a 1-week period. c. Data collection occurs over an extended pe… read more
Biopsychostats
Biopsychostats
Assistant Professor
Doctoral Degree
3 satisfied customers
For Osbert12:are you available to answer questions today!
For Osbert12: are you available to answer questions today! I will accept after every fifth one with a total of 15? I am willing to accept even every three, there is a total of 15! As well pay a tip at… read more
Osbert12
Osbert12
Master\u0027s Degree
412 satisfied customers
ForCustomer are you available to answer questions today!
ForCustomer are you available to answer questions today! I will accept after every fifth one with a total of 15?… read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
612 satisfied customers
For Osbert12: 1)Determine whether the data described sre
For Osbert12: 1)Determine whether the data described sre qualitative or quantative 2)For the data described below, identify the level of measurement as nominal, ordinal, interval, or ratio. Weights of… read more
Osbert12
Osbert12
Master\u0027s Degree
412 satisfied customers
Consider the following scores: 2, 3, 4, 11. What is ΣX?a.3.5b.4c.20d.Σ
Consider the following scores: 2, 3, 4, 11. What is ΣX? a. 3.5 b. 4 c. 20 d. ΣX cannot be calculated for these scores. Isabelle would like to calculate a measure of central for number of errors rats m… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
102 satisfied customers
14) Sound engineers studied factors that might affect the output,
14) Sound engineers studied factors that might affect the output, in decibels, of a rock concert's speaker system. The desired level of significance was a = .05. The results of their ANOVA tests are s… read more
Chirag
Chirag
Master\u0027s Degree
55 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less

Ask Your Question

x