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4. Interval estimation of a population mean, population standard deviation known The 2008 Workplace Productivity Survey, commissioned by LexisNexis and prepared by WorldOne Research, included the question, "How many work- related e-mails do you receive during the typical workday?" Let x = the number of work-related e-mails a legal professional receives during a typical workday. Suppose that x is normally distributed with a known standard deviation of 24.3. A sample of 250 legal professionals was surveyed, and the sample's mean response was 36.7 e-mails. Use the sample information to estimate p, the mean number of work-related e-mails a legal professional receives during a typical workday. The sampling distribution of X is normal with a mean and a standard deviation Use the following Distributions tool to develop a 95% confidence interval estimate of the mean number of work-related e-mails a legal professional receives during a typical workday. Select a Distribution Distributions 0 1 2/3 The 95% interval estimate of the population mean u is LCL = to UCL =

4. Interval estimation of a population mean, population standard deviation known The 2008 Workplace Productivity Survey, commissioned by LexisNexis and prepared by WorldOne Research, included the question, "How many work- related e-mails do you receive during the typical workday?" Let x = the number of work-related e-mails a legal professional receives during a typical workday. Suppose that x is normally distributed with a known standard deviation of 24.3. A sample of 250 legal professionals was surveyed, and the sample's mean response was 36.7 e-mails. Use the sample information to estimate p, the mean number of work-related e-mails a legal professional receives during a typical workday. The sampling distribution of X is normal with a mean and a standard deviation Use the following Distributions tool to develop a 95% confidence interval estimate of the mean number of work-related e-mails a legal professional receives during a typical workday. Select a Distribution Distributions 0 1 2/3 The 95% interval estimate of the population mean u is LCL = to UCL =

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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4. Interval estimation of a population mean, population standard deviation known The 2008 Workplace Productivity Survey, commissioned by LexisNexis and prepared by WorldOne Research, included the question, "How many work- related e-mails do you receive during the typical workday?" Let x = the number of work-related e-mails a legal professional receives during a typical workday. Suppose that x is normally distributed with a known standard deviation of 24.3. A sample of 250 legal professionals was surveyed, and the sample's mean response was 36.7 e-mails. Use the sample information to estimate µ, the mean number of work-related e-mails a legal professional receives during a typical workday. The sampling distribution of X is normal with a mean and a standard deviation Use the following Distributions tool to develop a 95% confidence interval estimate of the mean number of work-related e-mails a legal professional receives during a typical workday. Select a Distribution Distributiọns 0 1 2 The 95% interval estimate of the population mean u is LCL = to UCL =
Transcribed Image Text:4. Interval estimation of a population mean, population standard deviation known The 2008 Workplace Productivity Survey, commissioned by LexisNexis and prepared by WorldOne Research, included the question, "How many work- related e-mails do you receive during the typical workday?" Let x = the number of work-related e-mails a legal professional receives during a typical workday. Suppose that x is normally distributed with a known standard deviation of 24.3. A sample of 250 legal professionals was surveyed, and the sample's mean response was 36.7 e-mails. Use the sample information to estimate µ, the mean number of work-related e-mails a legal professional receives during a typical workday. The sampling distribution of X is normal with a mean and a standard deviation Use the following Distributions tool to develop a 95% confidence interval estimate of the mean number of work-related e-mails a legal professional receives during a typical workday. Select a Distribution Distributiọns 0 1 2 The 95% interval estimate of the population mean u is LCL = to UCL =
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