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Question Help A local chess club claims that the length of time to play a game h

ID: 2906781 • Letter: Q

Question

Question Help A local chess club claims that the length of time to play a game has a standard deviation of more than 10 minutes. Write sentences describing type I and type Il errors for a hypothesis test of this claim. A type l error will occur if the actual standard deviation of the length of time to play a game is 10 minutes, but you the null hypothesis A type ll error will occur if the actual standard deviation of the length of time to play a game is T? the null hypothesis. 10 minutes, but you

Explanation / Answer

Probability of type I error = P[ Reject Ho when Ho is True]

Probability of type II error = P[ Accept Ho when Ho is False]

claim is length of time has a standard deviation(S) is more than 10 minutes

Then the null hypothesis Ho: S =10 against Ha: S>10

A type I error will occur if the actual standard deviation of the length of time to play a game is equal to 10 minutes , but you reject null hypothesis, when null is true.

A type II error will occur if the actual standard deviation of the length of time to play a game is more than 10 minutes , but you accept the null hypothesis, when null is false.

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