STATISTICS F/BUSINESS+ECONOMICS-TEXT
13th Edition
ISBN: 9781305881884
Author: Anderson
Publisher: CENGAGE L
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Question
Chapter 22.5, Problem 12E
a.
To determine
Find the population total pharmacy for St. Louis.
b.
To determine
Find the population total pharmacy for St. Louis.
c.
To determine
Obtain an approximate 95% confidence interval for the mean pharmacy sales for the drug store chain.
d.
To determine
Obtain an 95% confidence interval for total pharmacy sales for the drug store chain.
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determine the point estimate and margin of error from the following confidence interval:
11.27 < μ < 16.33
Determine the sample size n needed to construct a 95%confidence interval to estimate the population mean for the following margins of error when
σ=92.
a) 10
b) 15
c) 20
Part 1
a) n= ? enter your response here
Part 2
b)n=? enter your response Here
Part 3
c) n=? enter your response here
Use the sample data and confidence level given below to complete a through d
Chapter 22 Solutions
STATISTICS F/BUSINESS+ECONOMICS-TEXT
Ch. 22.4 - Simple random sampling was used to obtain a sample...Ch. 22.4 - Prob. 2ECh. 22.4 - Prob. 3ECh. 22.4 - Prob. 4ECh. 22.4 - Prob. 5ECh. 22.4 - Prob. 6ECh. 22.5 - A stratified simple random sample was taken with...Ch. 22.5 - Prob. 8ECh. 22.5 - Prob. 9ECh. 22.5 - Prob. 10E
Ch. 22.5 - A drug store chain has stores in four cities: 38...Ch. 22.5 - Prob. 12ECh. 22.5 - Prob. 13ECh. 22.6 - A sample of four clusters is to be taken from a...Ch. 22.6 - A sample of six clusters is to be taken from a...Ch. 22.6 - Prob. 16ECh. 22.6 - Prob. 17ECh. 22 - To assess consumer acceptance of a new series of...Ch. 22 - Prob. 19SECh. 22 - A quality of life survey was conducted with...Ch. 22 - A U.S. Senate Judiciary Committee report showed...Ch. 22 - Refer again to the data in exercise 21. a. Develop...Ch. 22 - Prob. 23SECh. 22 - Prob. 24SE
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Use the accompanying Grade Point Averages data to find 90%, 95%, and 99% confidence intervals for the mean GPA.
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Determine the sample size n needed to construct a
90%
confidence interval to estimate the population mean for the following margins of error when
σ=72.
a) 5
b) 8
c) 10
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