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Two-Sample T-Test and CI: height, gender

 

                              Two-sample T for height 

 

         gender   N   Mean   StDev    SE Mean 

         male     19   5.73   0.51    0.117 

         female   24   5.25   0.47    0.096 

 

  

         Difference = mu (male) - mu (female) 

         Estimate for difference:  0.48 

         90% lower bound for difference:  0.283 

         T-Test of difference = 0 (vs >): T-Value = 3.17  P-Value =  0.002      DF = 18 

Fill in the blanks: 

  1.  Ho:    Ha: 

  2. Type of test: t- test – SRS, Normal 

  3. ?=.05  


  4.  t-value =      P-value:  look up on your t-table   

  5. Decision:   

  6. Conclusion: 


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