Please help

1) Construct a 90%, 95% and 99% confidence interval for this mean. One-Sample Statistics N Mean Std. Deviation Std. Error Mean AGE OF RESPONDENT 2013 47.71 17.351 2) Group Statistics Bid. Error RESPONDENTS SEX N Mean Std. Deviation Mean AGE OF RESPONDENT MALE 926 47.45 16.548 544 FEMALE 1087 47.93 18.011 546 Independent Samples Test Levene's Test for Equality of Variances 1-test for Equality of Means 95% Confidence Interval of the Difference Mean Std. Error Sig. (2-tailed) Difference Difference Lower Upper AGE OF RESPONDENT Equal variances 002 626 2011 531 - 486 .776 -2.008 1.036 assumed Equal variances not .630 1999.518 529 - 486 371 -1.998 1.026 issumed a) Construct a 95% confidence interval for both means. b) Construct a 90% confidence interval for both means