Question

Paired Samples t-TEST

After you run the t-test, answer these questions (type responses in this box):

1. What is the p-value (the significance)?

2. Is the difference between mean score for pretest and posttest statistically significant?

Paired Samples t-TEST
Statistics Competency
Pretest	Posttest
65	85
43	99
96	90
69	87
9	65
56	66
32	73
87	99
88	90
75	80
100	80
85	99
88	89
35	90
100	88
75	89
99	90
77	89
90	99
78	99
78	81
34	78
75	80
70	80
85	99
88	88
35	85
90	100
90	95

Answer 1

Paired Samples t-TEST

After you run the t-test, answer these questions (type responses in this box):

( used Excel and solve : )

To test :

Ho : μD = 0 vs H1: μD  ≠ 0

where μD : mean difference between pretest and posttest .  

Test statistics :

t = -3.96163352

## 1. What is the p-value (the significance)?

Answer : 0.000465692

## 2. Is the difference between mean score for pretest and posttest statistically significant?

Answer : yes there is difference between mean score for pretest and posttest statistically significant .

( p value is less than α value we reject Ho using p value approach here p value is less than α value we reject Ho )

## Output :