A statistics instructor is worry about his mortality so they randomly select 25 relatives who had died and collected the age when they died. The instructor calculated sample mean age when they died to be 74.4 years with a sample standard deviation of 11.4 years. Find the margin of error for a 90% confidence interval. Round critical value to two decimal place. Round standard error answer to one decimal place. Round final answer to one decimal place.

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Author:Amos Gilat
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A statistics instructor is worry about his mortality so they randomly select 25 relatives
who had died and collected the age when they died. The instructor calculated sample
mean age when they died to be 74.4 years with a sample standard deviation of 11.4
years.
Find the margin of error for a 90% confidence interval.
Round critical value to two decimal place.
Round standard error answer to one decimal place.
Round final answer to one decimal place.
Transcribed Image Text:A statistics instructor is worry about his mortality so they randomly select 25 relatives who had died and collected the age when they died. The instructor calculated sample mean age when they died to be 74.4 years with a sample standard deviation of 11.4 years. Find the margin of error for a 90% confidence interval. Round critical value to two decimal place. Round standard error answer to one decimal place. Round final answer to one decimal place.
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