Biology Forums - Study Force

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 conclusion for this hypothesis test would be that because the test statistic is

▸ more than the critical value, we can conclude that the average age of Zappos employees is less than 36 years old.

▸ more than the critical value, we cannot conclude that the average age of Zappos employees is less than 36 years old.

▸ less than the critical value, we can conclude that the average age of Zappos employees is less than 36 years old.

▸ less than the critical value, we cannot conclude that the average age of Zappos employees is less than 36 years old.

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