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I need help solving this question. The right answer for the mean is 70.5 and for the standard deviation is 3.16.
please show your work/explain how you found the answer. thank you!!

Question 8 The heights of adult Americah men are normally distributed; The middle 90% of this population has a height between
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Answer #1

Ze-Zo E 7=70 esiz se= 117=0) 275. clearly.uz”(6563+75-7)= 70.5 also Pl_%S Z 420): 0.90 PlosZ&Zo):0.45 Z0 1.645 => Zo= Xll75.

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