Using the following data about the effectiveness of a training course, at the 5%

FratBro23
Category:
Mathematics
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Question description

Using the following data about the effectiveness of a training course, at the 5% significance level what are the: 1) t-statistic, 2) t-critical, and 3) conclusion?

Data :
Student   Pre-Test   Post-Test
1              78            82
2              65            76
3              82            81
4              73            74
5              89            92
6              77            80
7              61            72
8              72            75
9              80            85

A 1) 3.255, 2) 1.833, 3) We can say with 95% confidence that the posttest scores were higher than the pretest scores
B 1) 3.255, 2) 2.262, 3) We can say with 95% confidence that the posttest scores were higher than the pretest scores
C 1) 3.255, 2) 1.860, 3) We can say with 95% confidence that the posttest scores were higher than the pretest scores
D 1) 9.766, 2) 2.262, 3) At the 95% confidence level, there is no statistical significance between the pretest and the posttest scores

 


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(Top Tutor) Daniel C.
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