A study asked respondents, "If ever married, how old were you when you first married?" The results are summarized in the MINItab exerpt that follows. Complete parts (a) and (b) below.

One sample T: AGEWED

Variable N Mean StDev SE Mean 99.0%CI

AGEWED 26310 22.340 4.794 0.030 (22.264, 22.416)

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

xbar=
E=

b- Interpret the confidence interval.

A- One can be 99% confident that the mean age of people when first married is 22.340 years.

B- There is a 99% probability that the mean age of people when first married is between 22.264 and 22.416 years.

C- There is a 99% probability that the mean age of people when first married is 22.340 years.

D- One can be 99% confident that the mean age of people when first married is between 22.264 and 22.416 years.