Chapter 03, Example 04) The heights of women aged 20 to 29 in the United States

Question

Chapter 03, Example 04) The heights of women aged 20 to 29 in the United States are approximately Normal with - 642 inches and 2.8 inches height 64.2 he standardized height is z28 height is the number of standard deviations by which her height differs from the mean height of all women aged 20 to 29. The upper arm length of females over 20 years old in the United States is approximately Normal with mean wm 99.7 rule to answer the following questions centimeters (cm) and standard deviation ~std cm. Use the 68-95 (a) what is standardized height (±0.01) of the women 67 inches tall? (a) what is standardized height (±0.01) of the women 62 inches tall?

Explanation / Answer

a) Stanardied height = ( 67-64.2)/2.8 = 1

b) Standardized height = (62-64.2)/2.8 = -2.2/2.8=-0.7857

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