You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe thepopulation standard deviation is approximately o = 61.8. You would like to be 99% confident that yourestimate is within 5 of the true population mean. How large of a sample size is required?Hint: Video [+]n =

Answer - The population standard deviation = 61.8 99% confidence interval ⇒…

Answered: You want to obtain a sample to estimate…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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We want to obtain a sample to estimate a population mean. Based on previous evidence, researchers believe the population standard deviation is approximately o = 22.4. We would like to be 98% confident that the estimate is within 4 of the true population mean. How large of a sample size is required? %3D Hint: Did you round up to the nearest whole number? Question Help: M Message instructor
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = to be 95% confident that your estimate is within 5 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? 54.2 dollars. You would like
A researcher is interested in finding a 95% confidence interval for the mean number minutes students are concentrating on their professor during a one hour statistics lecture. The study included 124 students who averaged 33.8 minutes concentrating on their professor during the hour lecture. The standard deviation was 12.6 minutes. Round answers to 3 decimal places where possible. a. To compute the confidence interval use a ? distribution. b. With 95% confidence the population mean minutes of concentration is between and minutes. c. If many groups of 124 randomly selected members are studied, then a different confidence interval would be produced from each group. About percent of these confidence intervals will contain the true population mean minutes of concentration and about percent will not contain the true population mean minutes of concentration.
The amount of trash generated by US households (in lbs per day) is normally distributed. You take a sample of 10 people. The sample average is xbar=10.91 lbs, and the sample standard deviation is s=4.736. What is the 99% Conf. Int. for the mean? Group of answer choices a. 6.04 to 15.78 b. 8.33 to 13.49 c. 8.09 to 13.73 d. 7.74 to 14.08
You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = 24.3 dollars. You would like to be 99% confident that your estimate is within 10 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? n =
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately g=7. You would like to be 95% confident that your estimate is within 1 unit of the population mean. How large of a sample size is required? A.n = 918 B.n = 133 C.n = 313 D.n = 189
Im not sure on how to find the sample size given the standard deviation and 336. What are the steps to find the answer?
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately ở = 26.7. You would like to be 98% confident thatyour estimate is within 4 of the true population mean. How large of a sample size is required? Submit Question D00 esc F1 F2 F3 F4 F5 @ #3 2 3
You want to obtain a sample to estimate a population mean. Based on previous evidence, you believe the population standard deviation is approximately = 60.5. You would like to be 95% confident that your estimate is within 5 of the true population mean. How large of a sample size is required? Round up to nearest whole number. n= Question Help: Video Written Example Message instructor Submit Question Jump to Answer 80 F1 F2 F3 Q A N @ 2 W S #3 X E D $ F4 R or dº % 5 F5 T MacBook Air F6 6 Y & 7 A4 F7 U * 00 8 J DII F8 | ( 9 K F9 0 ) о
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You want to obtain a sample to estimate how much parents spend on their kids birthday parties. Based on previous study, you believe the population standard deviation is approximately o = 61.5 dollars. You would like to be 90% confident that your estimate is within 1.5 dollar(s) of average spending on the birthday parties. How many parents do you have to sample? n =
You take a random sample of n = 900 observations from a population with a mean of 100 and a standard deviation of 10. What's the largest value of x you would expect to find? A. 108 B. 101 C. 100 D. 110

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