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A survey was conducted to estimate the population mean number of hours adult Americans spend working per week. A 95% confidence interval was constructed: a 95% confidence interval for µ: (40.1, 43.9) hours per week. A. What is a point estimate of the population mean number of hours adult Americans work per week? hours (do not round) Answer: B. What was the margin of error in this study? hours (do not round) C. Which of the following would be a suitable interpretation of the interval? O We are 95% confident that the sample mean number of hours adult Americans spend working per week is between 40.1 and 43.9 hours. We are 95% confident that the population mean number of hours adu NSAIDs (1).docx pend working per week is between 40.1 and 43.9 hours. We are 95% confident that an adult American spends between 40.1 and 43.9 hours working per week. O 95% of all adult Americans spend between 40.1 and 43.9 hours working per week. D. If the researchers wanted to reduce the margin of error in the study, what could they do? Increase the sample size or Decrease the confidence level. Answer=

A survey was conducted to estimate the population mean number of hours adult Americans spend working per week. A 95% confidence interval was constructed: a 95% confidence interval for µ: (40.1, 43.9) hours per week. A. What is a point estimate of the population mean number of hours adult Americans work per week? hours (do not round) Answer: B. What was the margin of error in this study? hours (do not round) C. Which of the following would be a suitable interpretation of the interval? O We are 95% confident that the sample mean number of hours adult Americans spend working per week is between 40.1 and 43.9 hours. We are 95% confident that the population mean number of hours adu NSAIDs (1).docx pend working per week is between 40.1 and 43.9 hours. We are 95% confident that an adult American spends between 40.1 and 43.9 hours working per week. O 95% of all adult Americans spend between 40.1 and 43.9 hours working per week. D. If the researchers wanted to reduce the margin of error in the study, what could they do? Increase the sample size or Decrease the confidence level. Answer=

MATLAB: An Introduction with Applications
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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A survey was conducted to estimate the population mean number of hours adult Americans spend working per week. A 95% confidence interval was constructed: a 95% confidence interval for μ: (40.1, 43.9) hours per week. A. What is a point estimate of the population mean number of hours adult Americans work per week? Answer: [box] hours (do not round) B. What was the margin of error in this study? Answer: [box] hours (do not round) C. Which of the following would be a suitable interpretation of the interval? - ○ We are 95% confident that the sample mean number of hours adult Americans spend working per week is between 40.1 and 43.9 hours. - ● We are 95% confident that the population mean number of hours adult Americans spend working per week is between 40.1 and 43.9 hours. - ○ We are 95% confident that an adult American spends between 40.1 and 43.9 hours working per week. - ○ 95% of all adult Americans spend between 40.1 and 43.9 hours working per week. D. If the researchers wanted to reduce the margin of error in the study, what could they do? [Dropdown] the sample size or [Dropdown] the confidence level.
Transcribed Image Text:A survey was conducted to estimate the population mean number of hours adult Americans spend working per week. A 95% confidence interval was constructed: a 95% confidence interval for μ: (40.1, 43.9) hours per week. A. What is a point estimate of the population mean number of hours adult Americans work per week? Answer: [box] hours (do not round) B. What was the margin of error in this study? Answer: [box] hours (do not round) C. Which of the following would be a suitable interpretation of the interval? - ○ We are 95% confident that the sample mean number of hours adult Americans spend working per week is between 40.1 and 43.9 hours. - ● We are 95% confident that the population mean number of hours adult Americans spend working per week is between 40.1 and 43.9 hours. - ○ We are 95% confident that an adult American spends between 40.1 and 43.9 hours working per week. - ○ 95% of all adult Americans spend between 40.1 and 43.9 hours working per week. D. If the researchers wanted to reduce the margin of error in the study, what could they do? [Dropdown] the sample size or [Dropdown] the confidence level.
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