Find z-score location of vertical line separate distribution
Find the z-score location of vertical line that separates normal distribution as described in each of the following:
a. 20% in the tail on the leftb. 40% in the tail on the rightc. 75% in the body on the leftd. 99% in the body on the right
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A random sample of 25 was drawn from a normal distribution whose standard deviation is 5. The sample mean is 80. Determine the 95% confidence interval estimate of the population mean.
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Find the z-score location of vertical line that separates normal distribution as described in each of the following 20% in the tail on the left.
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