Determine the upper-tail critical value

t/2

in each of the following circumstances.

a.	1=0.95,n=67		d.	1=0.95,n=32
b.	1=0.90,n=67		e.	1=0.99,n=9
c.	1=0.95,n=26

Question content area bottom

Part 1

a. t=________

(Round to four decimal places as needed.)

Part 2

b. t=______________

(Round to four decimal places as needed.)

Part 3

c.

t=________________

(Round to four decimal places as needed.)

Part 4

d. t=____________________

(Round to four decimal places as needed.)

Part 5

e. t=________________

(Round to four decimal places as needed.)

4. Given a standardized normal distribution (with a mean of 0 and a standard deviation of 1), complete parts (a) through (d).

Question content area bottom

Part 1

a. What is the probability that Z is less than 1.59?

The probability that Z is less than

1.59 is_________

(Round to four decimal places as needed.)

Part 2

b. What is the probability that Z is greater than 1.84?

The probability that Z is greater than

1.84 is__________

(Round to four decimal places as needed.)

Part 3

c. What is the probability that Z is between 1.59 and 1.84?

The probability that Z is between 1.59 and 1.84 is____________

(Round to four decimal places as needed.)

Part 4

d. What is the probability that Z is less than 1.59 or greater than 1.84?

The probability that Z is less than 1.59 or greater than 1.84 is___________

(Round to four decimal places as needed.)