Question 1

On an exam with = 52, you have a score of X = 56. Which of the following values for the standard deviation would give you the highest position in the class distribution?

a. = 4

b. = 8

c. = 10

d. = 2

Question 2

In a distribution with = 80 ands= 20, a score of X = 95 corresponds to z = 1.50.

True

False

Question 3

For a population of exam scores, a score of X = 83 corresponds to z = +0.50 and a score of X = 89 corresponds to z = +1.50. The population mean is = 80.

True

False

Question 4

If an entire population with = 60 ands= 8 is transformed into z-scores, then the distribution of z-scores will have a mean of ____ and a standard deviation of ____.

a.0 and 1

b.60 and 1

c.0 and 8

d.60 and 8 (unchanged)

Question 5

A distribution with = 55 ands= 6 is being standardized so that the new mean and standard deviation will be = 50 ands= 10. When the distribution is standardized, what value will be obtained for a score of X = 58 from the original distribution?

a.X = 58

b.X = 53

c.X = 55

d.X = 61