YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people watched online videos that averaged 8.7 minutes in length. It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to set α = 0.02. The correct hypothesis statement for this hypothesis test would be ________ . A)H₀: µ = 8.0; H₁: µ × 8.0 B)H₀: µ c 8.0; H₁: µ 8.0

Question

YouTube would like to test the hypothesis that the average length of an online video watched by a user is more than 8 minutes. A random sample of 37 people watched online videos that averaged 8.7 minutes in length. It is believed that the population standard deviation for the length of online videos is 2.5 minutes. YouTube would like to set α = 0.02. The correct hypothesis statement for this hypothesis test would be ________ . A)H₀: µ = 8.0; H₁: µ × 8.0 B)H₀: µ c 8.0; H₁: µ < 8.0 C)H₀: µ × 8.0; H₁: µ = 8.0 D)H₀: µ c 8.0; H₁: µ > 8.0

Quizplus · Accepted Answer

The correct hypothesis statement for testing if the average length of an online video watched by a user is more than 8 minutes would be: Null Hypothesis (H0): µ = 8.0 (the average length is 8 minutes), and Alternative Hypothesis (H1): µ > 8.0 (the average length is more than 8 minutes). This matches option D, where "µ > 8.0" correctly states the hypothesis that YouTube wants to test.

YouTube Would Like to Test the Hypothesis That the Average