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A teacher is comparing the mean study time of his freshmen and senior students. he believes...

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Statistics

A teacher is comparing the mean study time of his freshmen andsenior students. he believes that his senior students spend moretime studying per week than his freshmen students and decides toperform a hypotheses test on this belief.

a. suppose the decision of the hypothesis test is to reject thenull hypothesis. If in reality freshmen study for a mean of 10hours per week and seniors study for a mean of 15 hours per week,was an error made? If so, what type?

b. Suppose the decision of the hypothesis test is to fail toreject the null hypothesis. If in reality the freshmen study for amean of 15 hours per week and seniors study for a mean of 15 hoursper week, was an error made? If so, what type?

Answer & Explanation Solved by verified expert
4.4 Ratings (729 Votes)
Let us first understand what is Type I error and Type II error Type I error is rejecting the true null hypothesis Type II error is failing to rejecting the false null hypothesis a Here    See Answer
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