3. Suppose a random sample of n55 observations is selected from a population that is normally distributed,

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3. Suppose a random sample of n55 observations is selected from a population that is normally distributed, with mean equal to 1 and standard deviation equal to .36.

a. Give the mean and standard deviation of the sampling distribution of x .

b. Find the probability x that exceeds 1.3.

c. Find the probability that the sample mean x is less than .5.

d. Find the probability that the sample mean deviates from the population mean m 51 by more than .4.

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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Question Posted: Sep 14, 2024 05:00 AM

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3. Suppose a random sample of n55 observations is selected from a population that is normally distributed,

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Introduction To Probability And Statistics

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