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B mouwe 'IU - uraueo Assignment - 5 [AT 345, secti... I U A Survey Collects Demographic, Sociacconomic, D... i 1. [44 Points] DEVORESTAT9 6.1.002.MI.

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B mouwe 'IU - uraueo Assignment - 5 [AT 345, secti... I U A Survey Collects Demographic, Sociacconomic, D... i 1. [44 Points] DEVORESTAT9 6.1.002.MI. MY NOTES ASK YOUR TEACHER A survey collects demographic, socioeconomic, dietary, and health-related Information on an annual basis. Here is a sample of 20 observations on HDL cholesterol level (mg/all) obtained from the survey (HDL is "good" cholesterol; the higher its value, the lower the risk for heart disease). (a) Calculate a point estimate (in mg/dl) of the population mean HDL cholesterol level. mg/dl it (b) Making no assumptions about the shape of the population distribution, calculate a point estimate (in male\") of the value that separates the largest 50% of HDL levels from the smallest 50%. mg/dl (c) Calculate a point estimate (in mg/dl) of the population standard deviation. (Round your answer to three decimal places.) mg/di (d) An HDL level of at least 60 is considered desirable as it corresponds to a signicantly lower risk of heart disease. Making no assumptions about the shape of the population distribution, estimate the proportion p of the population having an HDL level of at least 60. p

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