Hugo averages51

words per minute on a typing test with a standard deviation of14

words per minute. Suppose Hugo's words per minute on a typing test are normally distributed. LetX=

the number of words per minute on a typing test. Then,XN(51,14)

.

Suppose Hugo types66

words per minute in a typing test on Wednesday. Thez

-score whenx=66

is ________. Thisz

-score tells you thatx=66

is ________ standard deviations to the ________ (right/left) of the mean, ________.

Correctly fill in the blanks in the statement above.

Select the correct answer below:

1. Suppose Hugo types66

words per minute in a typing test on Wednesday. Thez

-score whenx=66

is1.071

. Thisz

-score tells you thatx=66

is1.071

standard deviations to theleftof the mean,51

.

2-Suppose Hugo types66

words per minute in a typing test on Wednesday. Thez

-score whenx=66

is1.071

. Thisz

-score tells you thatx=66

is1.071

standard deviations to therightof the mean,51

.

3-Suppose Hugo types66

words per minute in a typing test on Wednesday. Thez

-score whenx=66

is0.882

. Thisz

-score tells you thatx=66

is0.882

standard deviations to theleftof the mean,51

.

4-Suppose Hugo types66

words per minute in a typing test on Wednesday. Thez

-score whenx=66

is0.882

. Thisz

-score tells you thatx=66

is0.882

standard deviations to therightof the mean,51

.