Suppose x has a distribution with a mean of 70 and a standard deviation of 44. Random samples of size n = 64 are drawn.

Compute the mean and standard deviation of the distribution. (For each answer, enter a number.)

U= 70

mu sub x bar = 5.5

Find the z value corresponding to = 59. (Enter an exact number.)

z =-2

Find P( < 59). (Enter a number. Round your answer to four decimal places.)

P( < 59 ( This is where I am stuck) ?

=

sigma sub x bar =

(b) Find the z value corresponding to = 59. (Enter an exact number.)

z =