24. Th e heights (in in and shown below: ches) of all 24 players on the Winnipeg

Question

24. Th e heights (in in and shown below: ches) of all 24 players on the Winnipeg Jets hockey team are ordered 69 70 70 71 72 72 73 73 73 74 74 75 e would like to determine if the true mean height of Winnipeg Jets hockey players differs from 75 inches. Which of the following statements is true (A) We sh (B) We sh (C) We should conduct a z test, as the sample size is fairly high, so X will have an ould conduct a z test, as it is reasonable to assume heights follow a normal distribution. ould conduct a t test, as we have no idea of the form of the distribution of heights. approximate normal distribution. (D) We should conduct a t test, as the population standard deviation is unknown. (E) A hypothesis test is unnecessary in this situation.

Explanation / Answer

Here we don't know the ditribution of height. And population standard deviation is unknonw.

So correct options are:

B and D

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