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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

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 24.26 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 24.88 years?

QUESTION 8

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.

Find a value, C, such that the probabilityof sample means being greater than C is 0.2676.

QUESTION 9

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.

Find a value, C, such that the probabilityof sample means being less than C is 0.0329.

QUESTION 10

There are 1000 employees in a firm,46% are female. A sample of 25employees is selected randomly.

Computethe standard error of the sample proportion.

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