In regression analysis, if the independent variable is measured ...

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In regression analysis, if the independent variable is measured in pounds, the dependent variable
 a. must also be in pounds.
  b. must be in some unit of weight.
  c. cannot be in pounds.
  d. can be measured in any units.

Question 2

The salaries of the employees of a corporation are normally distributed with a mean of 25,000 and a standard deviation of 5,000.
 a. What is the probability that a randomly selected employee will have a starting salary of at least 31,000?
  b. What percentage of employees has salaries of less than 12,200?
  c. What are the minimum and the maximum salaries of the middle 95 of the employees?
  d. If sixty-eight of the employees have incomes of at least 35,600, how many individuals are employed in the corporation?

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Answer to Question 1

d

Answer to Question 2

a. 0.1151
b. 0.52
c. Minimum = 15,200 Maximum = 34,800
d. 4,000

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