Zappos is an online retailer based in Nevada and employs 1,300 employees. One of their competitors, Amazon.com, would like to test the hypothesis that the average age of a Zappos employee is less than 36 years old. A random sample of 22 Zappos employees was found to have an average age of 33.9 years. The standard deviation for this sample was 4.1 years. Amazon would like to set α = 0.025. The correct hypothesis statement for this hypothesis test would be ____

Question

Quizplus · Accepted Answer

The correct hypothesis statement for testing if the average age is less than a certain value involves setting the null hypothesis (H0) as the population mean (µ) being equal to the value under consideration (in this case, 36 years), and the alternative hypothesis (H1) as the population mean being less than this value. Therefore, the correct formulation is H0: µ = 36; H1: µ < 36.

Zappos Is an Online Retailer Based in Nevada and Employs