5 20 Points Total The Following Data Are On The Dental Measurements Distance In Mm From The Center Of The Pituitary 1 (29.61 KiB) Viewed 35 times
5 20 Points Total The Following Data Are On The Dental Measurements Distance In Mm From The Center Of The Pituitary 2 (41.58 KiB) Viewed 35 times
5 20 Points Total The Following Data Are On The Dental Measurements Distance In Mm From The Center Of The Pituitary 3 (41.58 KiB) Viewed 35 times
5. (20 points total) The following data are on the dental measurements (distance in mm from the center of the pituitary to the pterygomaxillary fissure of 11 girls and 16 boys, all of whom were 16 years of age. Girls Boys 23,0 31.0 25.5 26.5 26.0 27.5 26.5 27.0 23.5 26.0 22.5 28.5 25.0 26.5 24.0 25.5 21.5 260 19.5 31.5 28.0 25.0 28.0 29.5 26.0 30.0 25.0 The M a. (4 points) What are the appropriate null and alternative hypotheses for this research question using the appropriate population parameter(s) for SAS output for a t-test? b. (4 point) Based on the output, which p-value tests the following hypotheses if you want to use a two-sample independent pooled t-test? Provide the specific test statistic and p-value. c. (4 point) From the output, what is the estimate of the pooled standard deviation? d. (4 points) From the output, what is the standard error for the average difference in dental measurements in the population oof 16 year old boy and 16 year old girls (assume the population variances are equal)?
The SAS System The TTEST Procedure Variable: x zender N Mean Std Dev Std Err Minimum Maximum Female 10 23.8500 2.4273 0.7676 19.5000 28.0000 Male 16 27.4688 2.0854 0.5214 25.0000 31.5000 Diff (1-2) -3.6187 2.2198 0.8948 gender Method Std Dev 95 % CL Std Dev Mean 95% CL Mean 23.8500 22.1136 25.5864 Female 2.4273 1.6696 4.4313 Male 3.2276 Diff (1-2) Pooled 27.4688 26.3575 28.5800 2.0854 1.5405 -3.6187 -5.4656 -1.7719 22198 1.7333 -3.6187 -5.5760 -1.6615 3.0881 Diff (1-2) Satterthwaite Method Variances DF t Value Pr > |t| Pooled Equal 24 -4.04 0.0005 Satterthwaite Unequal 17.043 -3.90 0.0011 Equality of Variances Method Nurn DF Den DF F Value Pr > F Folded F 9 15 1.35 0.5795
Join a community of subject matter experts. Register for FREE to view solutions, replies, and use search function. Request answer by replying!