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QUESTION 5 There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24years with a standard

QUESTION 5

There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24years with a standard deviation of 4.61 years.

What is the smallest sample sizesuch that the standard deviation of the sample mean is0.44 years or less?(Enter an integer number.)

QUESTION 6

There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24years with a standard deviation of 3years. A random sample of 36 students is selected.

What is the probability that the sample mean will be less than 23.75 years?

QUESTION 7

There are 8,000 students at the School of Management, UT Dallas. The average age of all the students is 24years with a standard deviation of 3years. A random sample of 36 students is selected.

What is the probability that the sample mean will be greater than 24.31 years?

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