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QUESTION 12 The starting salaries of individuals with an MBA degree are normally distributed with a...

QUESTION 12

The starting salaries of individuals with an MBA degree are normally distributed with a mean of $90,000 and a standard deviation of $20,000. Suppose we randomly select 9 of these individuals with an MBA degree. What is the expected value of the average starting salary for these individuals?

a.

$70,000

b.

$80,000

c.

$20,000

d.

$90,000

QUESTION 13

The starting salaries of individuals with an MBA degree are normally distributed with a mean of $90,000 and a standard deviation of $20,000. Suppose we randomly select 16 of these individuals with an MBA degree. What is the standard deviation of the average starting salary for these individuals?

a.

$4,000

b.

$5,000

c.

$20,000

d.

$1,666.67

QUESTION 14

The starting salaries of individuals with an MBA degree are normally distributed with a mean of $90,000 and a standard deviation of $20,000. Suppose we randomly select 16 of these individuals with an MBA degree. What is the shape of the sampling distribution of the average starting salary for these individuals?

a.

Normal

b.

Normal because of the Central Limit Theorem

c.

Normal because the distribution of the starting salaries of individuals with an MBA degree is normal

d.

None of the above

QUESTION 15

The starting salaries of individuals with an MBA degree are normally distributed with a mean of $90,000 and a standard deviation of $20,000. Suppose we randomly select 16 of these individuals with an MBA degree. What is the probability that the average starting salary for these individuals is at least $85,800?

  1. 0.7995
  2. 0.9131
  3. 0.2005
  4. -0.2611
Math   Statistics-And-Probability   
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