Question: please help me answer part (b) and (c) for my statistics homework. Suppose x has a distribution with a mean of 90 and a standard

please help me answer part (b) and (c) for my statistics homework.

Suppose x has a distribution with a mean of 90 and a standard deviation of 12. Random samples of size n = 64 are drawn. (AN XY \\R (a) Describe the x distribution and compute the mean and standard deviation of the distribution. xhas an approximately normal @ \" distribution with mean My = 90 and standard deviation (e ke (b) Find the z value corresponding to x = 87. X z= x () Find P(x

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