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2-c. Use the PROC TTEST output to report and interpret a 95% confidence interval for the difference in mean logcreat value for all female users
2-c. Use the PROC TTEST output to report and interpret a 95% confidence interval for the difference in mean logcreat value for all female users and non users in the population
NOTE- they are all women in both groups
Reference 3: Output of PROC TTEST for the variable logcreat. The SAS System The TTEST Procedure Variable: logcreat phenacein N Mean Sed Dev Std Er Minimum Maximum drug nodrug98-0 1426 0.2293 Diff (1-2) 197 -0.0547 0.2928 0.0209 -0.7985 1.3429 0.0232 0.59780.5878 0.0879 0.2734 0.0338 phenacetin Method drug nodrug Diff (12) Pooled 0.0879 00214 01544 0.2734 0.2529 0.2975 Diff (1.2) Satterthwaite 0.0879 0265 0.1493 Mean 99% CL Mean Std Dev 99% CL Std Dev 0.0547 -0.0959 -0.0136 0.2928 0.2664 0.3249 0.1426 0.1886 -0.0967 0.2293 0.2011 0.2668 Reference 3: Output of PROC TTEST for the variable logcreat. The SAS System The TTEST Procedure Variable: logcreat phenacein N Mean Sed Dev Std Er Minimum Maximum drug nodrug98-0 1426 0.2293 Diff (1-2) 197 -0.0547 0.2928 0.0209 -0.7985 1.3429 0.0232 0.59780.5878 0.0879 0.2734 0.0338 phenacetin Method drug nodrug Diff (12) Pooled 0.0879 00214 01544 0.2734 0.2529 0.2975 Diff (1.2) Satterthwaite 0.0879 0265 0.1493 Mean 99% CL Mean Std Dev 99% CL Std Dev 0.0547 -0.0959 -0.0136 0.2928 0.2664 0.3249 0.1426 0.1886 -0.0967 0.2293 0.2011 0.2668Step by Step Solution
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