Question

In: Statistics and Probability

A test measuring aggression is normally distributed with a mean = 23 and SD = 2.5....

A test measuring aggression is normally distributed with a mean = 23 and SD = 2.5.

Find the proportion:

a. to the left of x = 19.

b. to the right of x = 24.4

c. between the mean and x = 19.0

d. to the left of x =25.5 e. to the right of x = 19.0

Solutions

Expert Solution

Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(-1.6, TRUE)" to find the probability.

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Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(0.56, TRUE)" to find the probability.

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Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(0, TRUE)" & "=NORM.S.DIST(-1.6, TRUE)" to find the probability.

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Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(1, TRUE)" to find the probability.

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Refer Z-table to find the probability or use excel formula "=NORM.S.DIST(-1.6, TRUE)" to find the probability.

orchestra answered 1 year ago
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