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The blood cholesterol level of all men aged 20 to 34 years follows the Normal...

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The blood cholesterol level of all men aged 20 to 34 years follows the Normal distribution with mean 188 milligrams per decilliter mg dL and standard deviation 41 mg dL A sample survey measures the blood cholesterol level of a SRS of 10 such men The sample mean is denoted by The sampling distribution of the sample mean is a 188 mg dL and s 12 965 b approximately Normal with mean x 188 mg dL and standard deviation o 4 1 mg dL c approximately Normal with mean u x 59 451 mg dL and standard deviation 12 965 d approximately Normal with mean 188 mg dL and standard deviation o 12 965 mg dL

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