Q 1. Hugo averages78

words per minute on a typing test with a standard deviation of5.5

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(78,5.5)

.

Suppose Hugo types61

words per minute in a typing test on Wednesday. Thez

-score whenx=61

is ________. Thisz

-score tells you thatx=61

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 types61

words per minute in a typing test on Wednesday. Thez

-score whenx=61

is3.091

. Thisz

-score tells you thatx=61

is3.091

standard deviations to theleftof the mean,78

.

Suppose Hugo types61

words per minute in a typing test on Wednesday. Thez

-score whenx=61

is3.091

. Thisz

-score tells you thatx=61

is3.091

standard deviations to therightof the mean,78

.

Suppose Hugo types61

words per minute in a typing test on Wednesday. Thez

-score whenx=61

is2

. Thisz

-score tells you thatx=61

is2

standard deviations to therightof the mean,78

.

Suppose Hugo types61

words per minute in a typing test on Wednesday. Thez

-score whenx=61

is2

. Thisz

-score tells you thatx=61

is2

standard deviations to theleftof the mean,78

Q2. Hugo averages64

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(64,12)

.

Suppose Hugo types69

words per minute in a typing test on Wednesday. Thez

-score whenx=69

is ________. Thisz

-score tells you thatx=69

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 types69

words per minute in a typing test on Wednesday. Thez

-score whenx=69

is0.417

. Thisz

-score tells you thatx=69

is0.417

standard deviations to theleftof the mean,64

.

Suppose Hugo types69

words per minute in a typing test on Wednesday. Thez

-score whenx=69

is0.333

. Thisz

-score tells you thatx=69

is0.333

standard deviations to theleftof the mean,64

.

Suppose Hugo types69

words per minute in a typing test on Wednesday. Thez

-score whenx=69

is0.333

. Thisz

-score tells you thatx=69

is0.333

standard deviations to therightof the mean,64

.

Suppose Hugo types69

words per minute in a typing test on Wednesday. Thez

-score whenx=69

is0.417

. Thisz

-score tells you thatx=69

is0.417

standard deviations to therightof the mean,64

.

.