Please answer F The average height of an adult male in the U. S. is 69.5 inches

Question

Please answer F

The average height of an adult male in the U. S. is 69.5 inches with a standard deviation of 2 inches. a) Sketch the normal curve and fill in the standard deviation numbers and percentages for the scenario above. Use the diagram to answer questions b-f. b) What percentage of adult US men have a height that is between 2 standard deviations below the mean and 1 standard deviation above the mean? c) What percentage of adult US men have a height that is between 65.5" and 71.5"? d) What percentage of adult US men have a height that is less than 67.5 inches? e) What percentage of adult US men have a height that is between 71.5" and 75.5"? In a group of 90 adult US men, how many would you expect to be between 71.5" and 75.5" tall? f) What percentage of adult US men have a height that is between 65.5 and 69.5 inches? In a group of 90 adult US men, how many would you expect to be between 65.5 and 69.5 inches tall?

Explanation / Answer

f) P(X<69.5)=0.84134

P(X<65.5)=0.15866

P(65.5<X<69.5)=0.68268

number of people between 65.5 and 69.5 inches is 0.68268*90=61.4412=62 people

****Thank you

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