What is the appropriate z critical value for each of the following confidence levels? a. 95% d. 80% b. 90% e. 85%

95% confidence level

80% confidence level

90% confidence level

85% confidence level

Step-by-step explanation:

For a confidence level of x, the critical value of z is the value of z with a pvalue of p given by the following formula:

Then we look at the z-table to find Z with a pvalue of p.

a. 95%

Z with a pvalue of

So

d. 80%

Z with a pvalue of

So

b. 90%

Z with a pvalue of

So

e. 85%

Z with a pvalue of

So

answer: the first one

step-by-step explanation: use a calculator and divide the minutes by the dollars.

area = length x width

length = 2 x width

32 = 2 x width x width

32 = 2 x width^2

36 = width ^2  

width = 6

length = 12

area is 32

perimeter = 2 x 12 + 2 x 6 = 24 + 12 = 36

step-by-step explanation: