I have two questions I can't seem to figure out.

1. Suppose we have a binomial experiment in which success is defined to be a particular quality or attribute that interests us.

a). Suppose n =34 and p = 0.25. What are the values of the mean (0.25) and the Standard deviation (?)

b) Suppose n =56 and p = 0.36 what are the values of mean (0.36) and the standard deviation (?).

Question #2.

Suppose x has a distribution with a mean of 70 and a standard deviation of 51. Random samples of size n = 36 are drawn. Compute the mean and standard deviation of the distribution

a)

mean/x-bar (70)

Std. Dev/x-bar (?)

b). Find the z value corresponding to x-bar = 53 ( Enter an exact number)

z=

c) Find :(x-bar < 53).( Enter a number. Round your answer to four decimal places)

P(x-bar < 53) =