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A study asked respondents, "If ever married, how old were you when you first married?

A study asked​ respondents, "If ever​ married, how old were you when you first​ married?" The results are summarized in the technology excerpt that follows. Complete parts​ (a) through​ (d) below.

​One-Sample T: AGEWED

Variable

N

Mean

StDev

SE Mean

95


95​.0% CI

AGEWED

26130


26130

22.92


22.920

4.739


4.739

0.029


0.029

​(22.863


22.863​, 22.977


22.977​)

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​(a) Use the summary to determine the point estimate of the population mean and margin of error for the confidence interval.

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