Suppose x has a distribution with a mean of 70 and a standard deviation of 15. Random samples of size n = 36 are drawn.

Find thezvalue corresponding to=65. (Enter an exact number.)

FindP(<65). (Enter a number. Round your answer to four decimal places.) P(<65) =P(x bar < 65) Would it be unusual for a random sample of size 36 from the x distribution to have a sample mean less than 65? Explain