The owner of the internet music site from Exercise 1 wants to know if the mean age
Question:
The owner of the internet music site from Exercise 1 wants to know if the mean age of all customers is 25 years old.
a) What is the null hypothesis?
b) Is the alternative one- or two-sided?
c) What is the value of the test statistic?
d) What is the P-value of the test statistic?
e) What do you conclude at α = 0.05?
f) Given the confidence interval you found in Exercise 5, what might you have concluded? Explain.
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Related Book For
Business Statistics
ISBN: 9780133899122
3rd Canadian Edition
Authors: Norean D. Sharpe, Richard D. De Veaux, Paul F. Velleman, David Wright
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