A packet says it has 300 kcal on average. A dietician suspects the true mean is less. What is the alternate hypothesis?

H_1: \mu > 300

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H_1: \mu \ne 300

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H_1: \mu = 300

Correct answerYour answer

H_1: \mu < 300

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Show the answer and explanation

CorrectNot quiteAnswer D

Correct answer: D

The alternate hypothesis states what the researcher suspects instead of the claim.
'Less than 300' gives the one-sided $H_1: \mu < 300$ .

Worth noting

$\mu \ne 300$ would be right if the suspicion were 'different', in either direction.

Ten questions from Sampling, Inference & the t-Test, at your own pace.

Ten questions from Sampling, Inference & the t-Test, at your own pace.

Explanation