Question: Need help with question b. Thank you A simple random sample of size n - 49 is obtained from a population with u = 86

Need help with question b. Thank you

A simple random sample of size n - 49 is obtained from a population with u = 86 and o = 28. (a) Describe the sampling distribution of X. (b) What is P (x > 91.6) ? (c) What is P (x$78) ? (d) What is P (82.4

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