A study of students was done and their belief on fate on a scale of 1 to 10 ( 1=

Question

A study of students was done and their belief on fate on a scale of 1 to 10 ( 1= i control the outcome) and 10 ( 10 = its gonna be what its gonna be) students were questioned before and after receiving their final grade, here are the result:

student # score after final score before final

1 10 8

2 8 6

3 2 5

4 3 1

5 5 5

6 8 8

7 1 1

8 7 4

9 3 8

10 1 1

11 10 10

12 8 3

13 4 10

14 10 1

15 3 5

16 8 5

17 2 6

what is the null hyposthesis?

what is the proportion of plus signs?

at a 95% confidence interval, has the belief level changed?

  

Explanation / Answer

what is the null hyposthesis?

Ho:p1 =p2

at a 95% confidence interval, has the belief level changed?

p-value = 0.70 > 0.05

hence we fail to reject the null , there is not sufficient evidence that the blief level has changed.

t-Test: Paired Two Sample for Means Variable 1 Variable 2 Mean 5.470588235 5.117647059 Variance 10.88970588 9.235294118 Observations 17 17 Pearson Correlation 0.305748057 Hypothesized Mean Difference 0 df 16 t Stat 0.389024407 P(T<=t) one-tail 0.351193304 t Critical one-tail 1.745883676 P(T<=t) two-tail 0.702386608 t Critical two-tail 2.119905299

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