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Sampling, Inference & the t-Test · Question 48 of 70

Question 48

MediumOriginal question

A firm hopes a new method raises the mean output above 40 units an hour. What is the alternate hypothesis?

Options for question 48

Show the answer and explanation
CorrectNot quiteAnswer A

Correct answer: A

Explanation

  1. The claim to be checked against is H0:μ=40H_0: \mu = 40.

  2. The hope is an increase, so H1:μ>40H_1: \mu > 40, a one-sided test.

Worth noting

μ≥40\mu \ge 40 includes the equality, which belongs to H0H_0.

Concept
A one-sided alternate hypothesis
Typical time
90 s
Your time
—
The rule this testsNull and alternate hypotheses
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Ten questions from Sampling, Inference & the t-Test, at your own pace.

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