In a survey of women in a certain country (ages 20-29) the mean height was 66.8 inches with a standard deviation of 2.68 inches Answer the following questions about the specified normal distribution. (a) What height represents the 95th percentile? (b) What height represents the first quartile? (a) The height that represents the 95th percentile is _____ inches. (Round to two decimal places as needed.) (b) The height that represents the first quartile is_____ inches. (Round to two decimal places as needed.)
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645. We can use the formula X = μ + Zσ, where X is the value we're looking for, μ is the mean, Z is the z-score, and σ is the standard deviation. Plugging in the given values, we get X = 66.8 + 1.645*2.68 = 71.17 inches. So, the height that represents the 95th Show more…
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