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Company executives are considering three possible benefit packages.
a. A random sample of office employees shows the follow- ing preferences for the three packages. Test the hypothesis that the three packages are equally popular with their office employees. Use α = 0.05. Use α = 0.01. What is the p-value of this test?
Package
A
B
C
Number preferring
32
17
35
b. A random sample of line employees shows the following preferences for the three packages. Test the hypothesis that the preferences of office and line employees are the same. Use α = 0.05. Use α = 0.01. What is the p-value of this test?
48
13
55
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What is a 95% confidence interval
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