Solve the Problem. -Among a Random Sample of 400 College Students, the Mean

question 70

Multiple Choice

Solve the problem.
-Among a random sample of 400 college students, the mean number of hours worked per week at non-college related jobs is 14.4. This mean lies 2.8 standard deviation(s) above the mean of the sampling distribution. If a second sample of 400 students is selected, what is the probability that for the second sample, the mean number of hours worked will be less than 14.4?

• A)0.9974
• B)0.0026
• C)0.9965
• D)0.5

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