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Professors project that students at CCNY would score an average of 62 on a standardized exit exam if it were required to obtain a degree

Professors project that students at CCNY would score an average of 62 on a standardized exit exam if it were required to obtain a degree in economics. To test this, a group of professors samples 100 students who score an average of 68 on the exam with a standard error of 6. Assuming the scores are generated by a normal distribution, what is the test statistic for the hypothesis that the population average is 62?

a.

None of these

b.

1.65

c.

1

d.

2

e.

0.95

Professors project that students at CCNY would score an average of 62 on a standardized exit exam if it were required to obtain a degree in economics. To test this, a group of professors sample 100 students who score an average of 68 on the exam with a standard error of 6. Assuming the scores are generated by a normal distribution, what is the p-value for the hypothesis that the population average is 62?

a.

0.317

b.

0.159

c.

0.652

d.

0.025

e.

None of these

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