Hugo averages78

words per minute on a typing test with a standard deviation of12

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(78,12)

.

Suppose Hugo types58

words per minute in a typing test on Wednesday. Thez

-score whenx=58

is ________. Thisz

-score tells you thatx=58

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

Correctly fill in the blanks in the statement above.

Select the correct answer below:

Suppose Hugo types58

words per minute in a typing test on Wednesday. Thez

-score whenx=58

is1.667

. Thisz

-score tells you thatx=58

is1.667

standard deviations to theleftof the mean,78

.

Suppose Hugo types58

words per minute in a typing test on Wednesday. Thez

-score whenx=58

is1.667

. Thisz

-score tells you thatx=58

is1.667

standard deviations to therightof the mean,78

.

Suppose Hugo types58

words per minute in a typing test on Wednesday. Thez

-score whenx=58

is1.333

. Thisz

-score tells you thatx=58

is1.333

standard deviations to therightof the mean,78

.

Suppose Hugo types58

words per minute in a typing test on Wednesday. Thez

-score whenx=58

is1.333

. Thisz

-score tells you thatx=58

is1.333

standard deviations to theleftof the mean,78

.