Looking at the t-test for the unpaired data and testing the null hypothesis that the population difference = zero against an alternate hypothesis that the population means are different.  Use a = 0.05 significance level.   Unpaired Data:  Accept or Reject Null hypothesis:  Yes  /  No

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Looking at the t-test for the unpaired data and testing the null hypothesis that the population difference = zero against an alternate hypothesis that the population means are different.  Use a = 0.05 significance level.

 

Unpaired Data:  Accept or Reject Null hypothesis:  Yes  /  No 

Pooled t Test
Material A-Material B
Assuming equal variances
Difference
Std Err Dif
Upper CL Dif
Lower CL Dif
Confidence
-2.2920 t Ratio
3.3568 DF
4.7604 Prob> [t]
-9.3444 Prob > t
0.95 Prob<t
-0.68279
18
0.5034
0.7483
0.2517
-10
-5 0 5 10
Transcribed Image Text:Pooled t Test Material A-Material B Assuming equal variances Difference Std Err Dif Upper CL Dif Lower CL Dif Confidence -2.2920 t Ratio 3.3568 DF 4.7604 Prob> [t] -9.3444 Prob > t 0.95 Prob<t -0.68279 18 0.5034 0.7483 0.2517 -10 -5 0 5 10
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