doctor wants to estimate the mean HDL cholesterol of all 20 to 29 year old females. How many subjects are needed to estimate the mean HDL cholesterol within 2 points with 99% confidence assuming s=11.2 based on earlier studiess? Suppose the doctor would be content with 90% confidence. How does the decrease in confidence affect the sample size required?

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Q: A student reported a 95% confidence interval of [3.21,4.29] What is the mean of the data set?…

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Q: Your statistics instructor wants you to determine a confidence interval estimate for the mean test…

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Q: You want to have 90% confidence of estimating the proportion of office workers who respond to e-mail…

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Q: Find the margin of error for a​ 95% confidence interval for estimating the population mean when the…

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Q: Find the critical value that corresponds to 95% confidence for a mean and n = 35.

A: Given that - Find the critical value that corresponds to 95% confidence for a mean and n = 35.

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Q: The scores on a standardized test are normally distributed with a mean of 100 and standard deviation…

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Q: A doctor wants to estimate the mean HDL cholesterol of all​ 20- to​ 29-year-old females. How many…

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.