Apple reports that the average app download from its App Store earns the developer 17.5 cents (source:
Question:
a. Using 17.5 cents as your null hypothesis, calculate the p value for the sample result. Assume the population standard deviation is 5.4 cents.
b. Can the group use this sample result to make the case that the average earnings for their apps is less than 17.5 cents, if the significance level is set at .05? At .01? Explain your answers.
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Population All app downloads for the group of specialty app developers ...View the full answer
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Related Book For 
Understanding Business Statistics
ISBN: 978-1118145258
1st edition
Authors: Stacey Jones, Tim Bergquist, Ned Freed
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