An organisation wants to boost sales through the help of a lucky draw contest. The company's marketing manager wants to survey consumers who have been interested in similar campaigns in the past. The company was able to identify 1000 such consumers, out of which a sample of 100 were selected for this survey. If the manager's goal is to construct a 95% confidence interval estimate for the population mean to estimate lottery preference, why is it not possible to use the expression X+Z0.025 for this purpose? Explain. Choose the correct answer below.
An organisation wants to boost sales through the help of a lucky draw contest. The company's marketing manager wants to survey consumers who have been interested in similar campaigns in the past. The company was able to identify 1000 such consumers, out of which a sample of 100 were selected for this survey. If the manager's goal is to construct a 95% confidence interval estimate for the population mean to estimate lottery preference, why is it not possible to use the expression X+Z0.025 for this purpose? Explain. Choose the correct answer below.
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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Transcribed Image Text:An organisation wants to boost sales through the help of a lucky draw contest. The company's marketing manager wants to survey consumers who have been interested
in similar campaigns in the past. The company was able to identify 1000 such consumers, out of which a sample of 100 were selected for this survey. If the manager's
goal is to construct a 95% confidence interval estimate for the population mean to estimate lottery preference, why is it not possible to use the expression
X+Z0.025
for this purpose? Explain.
Choose the correct answer below.
O A. The sample standard deviation is not known.
OB. The sample size is too large.
OC. The population standard deviation is not known.
OD. The sample size is insufficient.
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