The president of a certain college believes that the proportion of students who
ID: 3331079 • Letter: T
Question
The president of a certain college believes that the proportion of students who enroll in her institution have a Higher, completion rate
Which of the following is a Type I error?
(A) The president fails to reject the hypothesis that the proportion of students who earn a bachelor's degree within six years is 0.398, when, in fact, the proportion is Greater than 0.398.
(B) The president rejects the hypothesis that the proportion of students who earn a bachelor's degree within six years is 0.398, when, in fact, the proportion is 0.398
(C) The president fails to reject the hypothesis that the proportion of students who earn a bachelor's degree within six years 0.398,when, in fact the proportion is 0.398
(D) The president rejects the hypothesis that the proportion of students who earn a bachelor's degree within six years is 0.398, when in fact, the proportion is greater than 0.398
Which of the following is a Type I error?
(A) The broker fails to reject the hypothesis that the mean price is $243,769 when it is the true mean cost.
(B) The broker rejects the hypothesis that the mean price is $243,769 when it is the true mean cost.
(C) The broker rejects the hypothesis that the mean price is $243,769 when the true mean price is Greater than $243,769
(D) The broker fails to reject the hypothesis that the mean price is $243,769, when the true mean price is Greater than $243,769
Explanation / Answer
as ype I error is to reject null hypothesis when it is true,Therefore
1) option C is correct
(C) The president fails to reject the hypothesis that the proportion of students who earn a bachelor's degree within six years 0.398,when, in fact the proportion is 0.398
2) option B is correct
(B) The broker rejects the hypothesis that the mean price is $243,769 when it is the true mean cost.
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