Suppose a statistics
instructor believes that there is no significant difference between the mean
class scores of statistics day students on Exam 2 and statistics night students
on Exam 2. She takes random samples from each of the populations. The mean and
standard deviation for 35 statistics day students were 75.86 and 16.91. The
mean and standard deviation for 37 statistics night students were 75.41 and
19.73. The “day” subscript refers to the statistics day students. The “night”
subscript refers to the statistics night students. A concluding statement is:

Question

Accepted Answer

There is insufficient
evidence to conclude that there is a significant difference between the means
of the statistics day students and night students on Exam 2.

Answer

There is insufficient evidence to conclude that
the statistics day students' mean on Exam 2 is better than the statistics night
students' mean on Exam 2.

Answer

There is sufficient
evidence to conclude that statistics night students' mean on Exam 2 is better
than the statistics day students' mean on Exam 2.

Answer

There is sufficient evidence to conclude that
there is a significant difference between the means of the statistics day
students and night students on Exam 2.

Crowdly

Suppose a statistics instructor believes that there is no significant differenc...

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