Suppose researchers are about to draw a sample of 1500 observations from a normally distributed population, and use this data to create a confidence interval for the population mean using the t procedure. They don't know much about statistics, and decide to use a tă/2 value of 0.46 to calculate the margin of error. (Since, curiously, that is their favourite number.) What is the confidence level of this confidence interval? Express your response as a percentage, but do not include the percent sign. e.g. If the confidence level is 87.6%, then enter 87.6. (Give your numeric response to at least 1 decimal place. Give only your numeric response, and not any extra characters or symbols.)

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Suppose researchers are about to draw a sample of 1500 observations from a
normally distributed population, and use this data to create a confidence interval for
the population mean using the t procedure. They don't know much about statistics,
and decide to use a ta/2 value of 0.46 to calculate the margin of error. (Since,
curiously, that is their favourite number.) What is the confidence level of this
confidence interval?
Express your response as a percentage, but do not include the percent sign. e.g. If
the confidence level is 87.6%, then enter 87.6.
(Give your numeric response to at least 1 decimal place. Give only your numeric
response, and not any extra characters or symbols.)
Transcribed Image Text:Suppose researchers are about to draw a sample of 1500 observations from a normally distributed population, and use this data to create a confidence interval for the population mean using the t procedure. They don't know much about statistics, and decide to use a ta/2 value of 0.46 to calculate the margin of error. (Since, curiously, that is their favourite number.) What is the confidence level of this confidence interval? Express your response as a percentage, but do not include the percent sign. e.g. If the confidence level is 87.6%, then enter 87.6. (Give your numeric response to at least 1 decimal place. Give only your numeric response, and not any extra characters or symbols.)
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