Data Set 6-3

A population of scores was normally distributed with a mean of 32 and a standard deviation of 3.

4. Look at Data Set 6-3. The proportion that scored between 30 and 27 is

a. .2989;

b. .2039;

c. .7011;

d. none of the other alternatives are correct.

5. For Data Set 6-3, the scores that separate the middle 60 percent from the extremes are

a. 28.16, 35.84;

b. 29.48, 34.52;

c. 30.35, 33.56;

d. none of the other alternatives are correct.