I am only looking for answer D? The level of support for corporate sustainability(measured on a quantitative scale ranging from 0 to 160points) was obtained for 994

994 senior managers at CPA firms. The accompanying table gives the mean and standard deviation for the level of support variable. It can be shown that level of support is approximately normally distributed. Complete parts a. through d.

N

Mean

StDev

Variance

Minimum

Maximum

Range

994

994

66.053

66.053

25.495

25.495

649.995

649.995

0.000

0.000

154.000

154.000

154.000

154.000

a. Find the probability that the level of support for corporate sustainability of a randomly selected senior manager is less than 40

40 points.

The probability that a randomly selected manager gets less than 40

40 points is

0.154

0.154.

(Round to three decimal places asneeded.)

b. Find the probability that the level of support for corporate sustainability of a randomly selected senior manager is between 40

40 and 122

122 points.

The probability that a randomly selected manager gets between 40

40 and 122

122 points is

0.832

0.832.

(Round to three decimal places asneeded.)

c. Find the probability that the level of support for corporate sustainability of a randomly selected senior manager is greater than 122

122 points.

The probability that a randomly selected manager gets more than 122

122 points is

0.014

0.014.

(Round to three decimal places asneeded.)

d. One-tenth

tenth of the 994

994 senior managers indicated a level of support for corporate sustainability below whatvalue?

One-tenth

tenth of the 994

994 senior managers indicated a level of support below

nothing

.

(Round to two decimal places asneeded.)