Need the upper bound
Points: 0.27 of 1 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 95.0% CI AGEWED 26930 22.750 4 726 0.029 (22 694, 22 806) Click the icon to view the table of critical (-values. (a) Use the summary to determine the point estimate of the population mean and margin of error for the confidence interval x = 22.750 (Type an integer or a decimal Do not round) E = 0 056 (Type an integer or a decimal. Do not round.) (b) Interpret the confidence interval. Select the correct choice below and fill in the answer box(es) within your choice O A. There is a 95% probability that the mean age of people when first married is between and years. (Type integers or decimals. Do not round.) One can be 95% confident that the mean age of people when first married is between 22 694 and 22.806 years. (Type integers or decimals. Do not round.) O C. One can be 95% confident that the mean age of people when first married is years. (Type an integer or a decimal Do not round.) O D. There is a 95% probability that the mean age of people when first married is years. (Type an integer or a decimal Do not round.) (c) Verify the results by computing a 95% confidence Interval with the information provided. Begin with the lower bound. 22 750 - 1.960 . 4.726 22 694 26930 (Type the terms of your expression in the same order as they appear in the original expression. Round to three decimal places as needed.) Next find the upper bound 4 726- (Type the terms of your expression in the same order as they appear in the original expression. Round to three decimal places as needed.)