Examlex

Solved

A College Dean Wants to Determine the Average Time It

question 2

Multiple Choice

A college dean wants to determine the average time it takes a student to get from one class to the next.Preliminary studies have shown that it is reasonable to let A college dean wants to determine the average time it takes a student to get from one class to the next.Preliminary studies have shown that it is reasonable to let <sub>t</sub> = 1.5 minutes the standard deviation of class travel times) .What is the sample size which should be examined if the dean wants to assert with a probability of 95 percent that his estimate, the mean time of the random sample, will not be off by more than .25 minutes in either direction) ? Choose the closest answer. A) 72 or more, but not less B) 81 or more, but not less C) 139 or more, but not less D) 200 or more, but not less E) None of the abovet = 1.5 minutes the standard deviation of class travel times) .What is the sample size which should be examined if the dean wants to assert with a probability of 95 percent that his estimate, the mean time of the random sample, will not be "off" by more than .25 minutes in either direction) ? Choose the closest answer.

Definitions:

Related Questions

Q10: Which of the following information should the

Q11: All of the following are capabilities of

Q18: A test-retest or parallel forms approach will

Q26: The sample mean is not known, but

Q31: In the expression Ŷ = 7.26 +

Q31: Mail surveys apparently produce more accurate responses,

Q34: Test markets can be monitored to track

Q44: Order bias occurs when prior questions influence

Q44: A _ usually is a list of

Q46: One limitation of using open-ended questions is