Calculus and Above

Calculus Questions? Ask a Mathematician for Answers ASAP

Connect one-on-one with {0} who will answer your question

Related Calculus and Above Questions
A doctor wants to estimate the HDL cholesterol of all​ 20-
A doctor wants to estimate the HDL cholesterol of all​ 20- to​ 29-year-old females. How many subjects are needed to estimate the HDL cholesterol within 3 points with 99 % confidence assuming sigma equ… read more
Sandhya_sharma
Sandhya_sharma
Master's Degree
3,164 satisfied customers
The population mean annual salary for environmental
The population mean annual salary for environmental compliance specialists is about ​$66 comma 00066,000. A random sample of 4040 specialists is drawn from this population. What is the probability tha… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
There are really three things that drive CI.......One is
There are really three things that drive CI.......One is alpha ( level of significance or confidence level) One is sample size and the other is stdev. Which of these three is the best to manipulate? W… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
1. A random sample of 92 observers produced a mean X = 25.8
1. A random sample of 92 observers produced a mean X = 25.8 and a standard deviation s = 2.6. a) Find a 95% confidence interval for 11. b) Find the 90% confidence interval for Jl c) Find the 99% confi… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
random sample size of 25 from population has mean of 10 and
random sample size of 25 from population has mean of 10 and standard deviation 5. the standard deviation of the sampling distribution of the mean is? for testing the mean, the margin of error of a 90%… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
You answered similar questions previously but the data has
You answered similar questions previously but the data has slighly changed. Can you please provide details as to how you worked the problem? Thx #1 Find the sample size needed to estimate the percenta… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
FOR GURU2009 ONLY: Assignment number 1: Needed right now! 1. In
FOR GURU2009 ONLY: Assignment number 1: Needed right now! 1. In the standard normal distribution, the standard deviation is always: 2. The area under the standard normal curve is: 3. If Mary gets a 90… read more
Chirag
Chirag
Master's Degree
10,329 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
Trigeoscal
Trigeoscal
College Math Professor
Master's Degree
960 satisfied customers
Problems I am stuck on my homework with: 1.With regards to
Problems I am stuck on my homework with: 1.With regards XXXXX XXXXX standard normal distribution complete the following: (a) Find P(z > 0), the percentage of the standard normal distribution above … read more
Trigeoscal
Trigeoscal
College Math Professor
Master's Degree
960 satisfied customers
Pg.431 1)The mean of the sampling distribution of means is
Pg.431 1)The mean of the sampling distribution of means is equal to the mean of the population. T-F, and why or why not? 2) In the formula for the Confidence Interval for the Mean, if the Confidence C… read more
Ryan
Ryan
Bachelor's Degree
4,665 satisfied customers
Find the margin of error for the given values of c, s, and
Find the margin of error for the given values of c, s, and n. C=0.95, s=2.3, n=49 E=_________ (Round to three decimal places as needed) Construct the confidence interval for the population mean µ. C= … read more
Stevewh
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
For a fixed sample size, decreasing the confidence level improves
1) For a fixed sample size,decreasing the confidence level improves the precision of the confidence interval estimate of μ and vice versa. a) Suppose that you want to increase the precision without re… read more
Math-John
Math-John
30 satisfied customers
Suppose that a 95% confidence interval for a population mean
Suppose that a 95% confidence interval for a population mean μ is given to be from 130 to 150. The 95% value in this statement indicates that: (choose the one best answer) a. P ( 130 < μ < 150 )… read more
Osbert12
Osbert12
Master's Degree
2,468 satisfied customers
1) Notice (from the margin of error measurment below) that
1) Notice (from the margin of error measurment below) that we have used a sample size larger than needed in order to be sufficiently confident that the sample mean would estimate the population mean h… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
Hello Greg, I have the following for today. I was careful
Hello Greg, I have the following for today. I was careful to copy the questions in their entirety this time. These need to be done by midnight, like usual. Thanks Greg:) 1. Consider a normal populatio… read more
Mr. Gregory White
Mr. Gregory White
Master's Degree
Master's Degree
99 satisfied customers
1.Assume that the weight loss for the first month of a diet
1.Assume that the weight loss for the first month of a diet program varies between 6 pounds and 12 pounds, and is spread evenly over the range of possibilities, so that there is a uniform distribution… read more
SusanAthena
SusanAthena
Master's Degree
Master's Degree
102 satisfied customers
a) From the information given here, determine the 95% confidence
a) From the information given here, determine the 95% confidence interval estimate of the population mean. Xbar = 100 σ = 20 n = 25 b) Repeat part (a) with xbar = 200. c) Repeat part (a) with xbar = 5… read more
Chirag
Chirag
Master's Degree
10,329 satisfied customers
1. a) From the information given here, determine the 95% confidence
1. a) From the information given here, determine the 95% confidence interval estimate of the population mean. Xbar = 100 σ = 20 n = 25 2. b) Repeat part (a) with xbar = 200. c) Repeat part (a) with xb… read more
Chirag
Chirag
Master's Degree
10,329 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.

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 >

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