Based on this information, answer the questions below. H 0 H 1 H 0 ? H 1 ? ? ? S

Question

Based on this information, answer the questions below.

H0

H1

H0

?

H1

?

?

?

Some college graduates employed full-time work more than hours per week, and some work fewer than hours per week. We suspect that the mean number of hours worked per week by college graduates, , is less than hours and wish to do a statistical test. We select a random sample of college graduates employed full-time and find that the mean of the sample is hours and that the standard deviation is hours.

Based on this information, answer the questions below.

Explanation / Answer

We suspect that the mean number of hours worked per week by college graduates, u, is less than 40 hours.

Hence,

Ho: u >= 40
Ha: u < 40 [ANSWER]

************************************

Note that a type I error is incorrectly rejecting Ho.

Hence,

A type I error is [[REJECTING]] the hypothesis that [[u >= 40]] when in fact, [[u >= 40]]. [ANSWER]

*******************************

As we reject Ho, it could be a [[TYPE I]] error. [ANSWER]

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