Math Homework

Ask Math Questions. Get Help With Your Math Homework

Ask an Expert,
Get an Answer ASAP!

1. A formal statement that there is an absence of relationship…

Customer Question
1. A formal statement that...
1. A formal statement that there is an absence of relationship between variables when tested by a researcher is called:
Null hypothesis
Type I error
Type II error
Negative interval
2. Bivariate statistics refers to the statistical analysis of the relationship between two variables.
True
False
3. Positive relationships between two variables indicate that, as the score of one increases, the score of the other increases.
True
False
4. A result that is probably not attributable to chance is:
Type I error
Type II error
Statistical significance
In the semi-quartile range
5. A score that is likely to fall into the middle 68% of scores of a normal distribution will fall inside these values:
. +/- 3 standard deviations
+/- 2 standard deviations
+/- 1 standard deviation
semi-quartile range
29. Regression uses the least squares method to fit a model.
True
False
30. The difference between the highest and lowest score in a distribution is called:
Semi-quartile range
Range
Mean
Median
31. This is the measurement of dispersion equal to the square root of the mathematical variance.
Mean
Median
Standard deviation
Range
32. This is used to compare means while controlling for the effect of a covariate.
ANOVA
RANOVA
ANCOVA
Dependent t-test
33. The assumptions for ANCOVA differ substantially from those for ANOVA.
True
False
34. When the researcher incorrectly rejects the null hypothesis, it is known as:
Hypothesis error
Statistical significance
Type I error
Type II error
35. You are studying the effect of hypnosis on weight loss. You will measure each patient's weight pre- and post-intervention. The most appropriate test is:
One sample t-test
MANOVA
ANCOVA
Dependent groups t-test
36. What is the minimum level of measurement appropriate for the independent variable in a t-test?
Nominal
Ordinal
Interval
Ratio
37. ANOVA assumes which of the following?
Random sampling
Normal distribution
Dependent variable is at least interval
Three or more groups of independent variable
All of the above
38. Public Health nurses want to compare the mean weight of US 6th graders to a sample of 6th graders in one school. Which statistical test is most appropriate
One-sample t-test
ANOVA
ANCOVA
Independent t-test
39. A group of neonatal nurses wanted to know if there was a difference in mean heart rate between premature babies who were swaddled and babies who were not swaddled. Babies were randomly assigned to swaddling or no swaddling. Which test is most appropriate?
One sample t-test
ANCOVA
Independent t-test
Logistic regression
40. Psych nurses wanted to evaluate the effect of three different treatments for anxiety - positive imagery, therapeutic touch, and medication on anxiety score (interval data) while controlling for the effect of length of stay. Which test is most appropriate?
ANOVA
ANCOVA
Independent t-test
Paired t-test
41. Critical care nurses wanted to evaluate the effect of heparin vs saline IV flush solution on IV patency (patent vs not patent). Which test is most appropriate?
One sample t-test
Independent t-test
Chi-square test
ANOVA
42. A nurse researcher wanted to evaluate blood pressure in a set of patients/research subjects at 1, 3, and 6 months. What test would be most appropriate?
Independent t-test
ANVOVA
RM-ANOVA
ANCOVA
43. In a study that examines the effect of a peer mentor on the heart rate of patients, what is the dependent variable?
Peer mentoring
Emotional status
Heart rate
Patients
44. A variable with equal distances between score units which also has a true meaningful zero is:
Ordinal
Cardinal
Ratio
Nominal
45. The standard deviation is:
The difference between the 3rd and 1st quartile.
The squared deviations from the mean.
The difference between the highest and lowest scores.
The square root of the variance.
46. If a researcher accepts a null hypothesis when that hypothesis is actually true, she has committed:
a type I error
a type II error
no error
a causation
47. Chi-square tests can be conducted for a 4X3 contingency table.
True
False
48. This is used when a conservative approach is desired and an expected cell frequency is less than 5 in a 2X2 table.
Fisher's exact test
Cramer's V
Yates' correction
Regression
49. The distribution of chi-square values is NOT normally distributed.
True
False
50. Generally, an ANOVA test is used when 3 or more variables are compared.
True
False
Submitted: 2 years ago.Category: Math Homework
Show More
Show Less
Ask Your Own Math Homework 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.
Customer reply replied 2 years ago
I would like the answers in an hour please. Let me know if this possible, otherwise, I have to cancel this order. Thank you.
Answered in 1 day by:
5/31/2015
Math Tutor or Teacher: Mr. Gregory White, Master's Degree replied 2 years ago
Mr. Gregory White
Mr. Gregory White, Master's Degree
Category: Math Homework
Satisfied Customers: 92
Experience: M.A., M.S. Education / Educational Administration
Verified
Hello, my name is Greg.
I see this might be time sensitive.
Do you still need this answered?
Ask Your Own Math Homework Question
Customer reply replied 2 years ago
So sorry for the late response. I needed it on the same day and left a message stating to disregard if not received within an hour or so. I'll keep you in mind next time, Greg. Thanks again.
Was this answer helpful?
Ask Mr. Gregory White Your Own Question
Mr. Gregory White
Mr. Gregory White
Mr. Gregory White, Master's Degree
Category: Math Homework
Satisfied Customers: 92
92 Satisfied Customers
Experience: M.A., M.S. Education / Educational Administration

Mr. Gregory White 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:

Mr. Gregory White

Mr. Gregory White

Master's Degree

92 satisfied customers

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

JACUSTOMER-yrynbdjl-

JACUSTOMER-yrynbdjl-

Master's Degree

49 satisfied customers

I have taught college Mathematics for the past 10 years.

SusanAthena

SusanAthena

Master's Degree

41 satisfied customers

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

Dr Arthur Rubin

Dr Arthur Rubin

Doctoral Degree

37 satisfied customers

Ph.D. in Mathematics, California Institute of Technology

mhasan420

mhasan420

Master's Degree

29 satisfied customers

BA Maths, Oxford

Don

Don

Master's Degree

17 satisfied customers

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

Eric M.

Eric M.

Associate Degree

15 satisfied customers

BS and MS in computing with background in advanced statistics, combinatorics, linear algebra, calculus, and advanced algorithms.

< Previous | Next >

Related Math Homework Questions
Summers** need more help with new questions. Needed
Brad Summers** need more help with new questions. Needed urgently. Multiple need no work and rest please show work. Will give good Tip ☺️.… read more
Brad Summers
Brad Summers
Bachelor of Education
9 satisfied customers
I need your help again, please, I need help with Calculating
Hello, RyanI need your help again, please, I need help with Calculating margin, determining margin potential and Production Costs. It very simple math. I will be looking forward to your reply.Thanks y… read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
The equation used to predict the total body weight​ (in
The equation used to predict the total body weight​ (in pounds) of a female athlete at a certain school is ModifyingAbove y with caret equals negative 110 plus 3.22 x 1 plus 1.38 x 2​, where x1 is the… read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
Most railroad cars are owned by individual railroad
Most railroad cars are owned by individual railroad companies. When a car leaves its home​ railroad's trackage, it becomes part of a national pool of cars and can be used by other railroads. The rules… read more
Sandhya_sharma
Sandhya_sharma
Master\u0027s Degree
559 satisfied customers
Can we have a curve that balances with 2/3 of the area to
can we have a curve that balances with 2/3 of the area to the left of the mean and 1/3 of the area to the right?. Would it be skewed and what would it look like on paper? is it symmetric?… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
411 satisfied customers
I don't understand this problem, it says: write an equation
I don't understand this problem, it says: write an equation that has (1, 2) as a solution.… read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
I have a word problem that i do not understsand. Would you
i have a word problem that i do not understsand JA: The Math Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best. Cus… read more
Brad Summers
Brad Summers
Bachelor of Education
9 satisfied customers
Read the questions in the picture I sent and solve them.
Please read the questions in the picture I sent and solve them. Read carefully directions on the paper and follow that steps.I'd like it solved by Tuesday evening.… read more
George Sibiya
George Sibiya
PhD
288 satisfied customers
2. A manufacturing company produces two types of skis—a
2. A manufacturing company produces two types of skis—a trick ski and a slalom ski. The trick ski requires 6 hours of labor for fabricating and 1 hour of labor for finishing. The slalom ski requires 4… read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
I am looking for maths tutor. Coursework university level. I
i am looking for maths tutor JA: The Math Tutor can help you get an A on your homework or ace your next test. Tell me more about what you need help with so we can help you best. Customer: coursework u… read more
Dr Arthur Rubin
Dr Arthur Rubin
Doctoral Degree
Doctoral Degree
37 satisfied customers
Solve all the problems in the pictures that I sent you. And
Please solve all the problems in the pictures that I sent you. And just write down the answer on another piece of paper.… read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
I'll need help with an STATISTICS MATH assignment RIGHT NOW!
I'll need help with an STATISTICS MATH assignment RIGHT NOW! today and the responses have to faster than a speeding bullet and correct too… read more
Brad Summers
Brad Summers
Bachelor of Education
9 satisfied customers
My daughter is a very good kid and an A- student at the same
My daughter is a very good kid and an A-B student at the same time has a number of after-school activities she participates in such as ballet and track. She has one class that is part of her daily cla… read more
judybailey61
judybailey61
Bachelors degree
196 satisfied customers
NOT GLENN Any other Expert: Please show how to solve this
NOT GLENN Any other Expert: Please show how to solve this problem step by step. "You are designing a rectangular birthday card for a friend. You want the card's length to be 1 in more than twice the c… read more
GLENN GILONGOS
GLENN GILONGOS
Master of Mathematics
411 satisfied customers
1.The following cost data are provided by a simple random
1.The following cost data are provided by a simple random sample.554044304540452954324671389052404490532443403176a)Develop a point estimate of the mean cost.… read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
Looking at a finance book and would like to you to show me
Looking at a finance book and would like to you to show me how the author correctly went from one arrangement of a formula (stated as "Original Formula" below ) to the "Final Formula"Original Formula:… read more
Brad Summers
Brad Summers
Bachelor of Education
9 satisfied customers
9.A school psychologist wishes to study the influence of
9.A school psychologist wishes to study the influence of three new curricula plans on the history achievement of junior high school students. Although the groups of students were selected on a fairly … read more
Ryan
Ryan
Bachelor\u0027s Degree
1,060 satisfied customers
Could someone help me with a 15 question quiz on Managed
Could someone help me with a 15 question quiz on Managed Care Organizations (MCO's) and Long term Care Services (LTC's)?… read more
judybailey61
judybailey61
Bachelors degree
196 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