Below are SPSS tables from a set of data that included multiple ethnic groups, a
ID: 3370105 • Letter: B
Question
Below are SPSS tables from a set of data that included multiple ethnic groups, average number of points accumulated in the course, number of persons in each group, and standard deviations by ethnicity. Descriptives Report: Ethnicity x Mean ethnic Native 95.20 102.90 100.08 102.27 92.91 00.57 Std. Deviation 17.094 12.876 14.714 14.702 21.215 15.299 20 24 Black White Hispanic Total 105 95% Confidence Interval of the Difference Sig.(2-tailed) Difference LowerUpper 1114 1.491 104 139 2590 ,0367 Statistical software programs such as SPSS produce probabilities such as.004, .008, or.049, which are described as significant. (The reason they are significant is they areExplanation / Answer
A)
The results are said to be significant if the p-value<5% or null hypothesis is rejected. The rejection of null hypothesis indicates that there is sufficient evidence in favor of the alternative hypothesis (researchers claim).
In this case, the P value is greater than 5%, the null hypothesis is not rejected at 5% level of significance. Thus, I can say that there is no significant difference between the GPA.
B)
The null hypothesis, ho: there is no significant difference in the mean GPA between the two groups. This is a test against an alternative hypothesis, h1: there is a significant difference in the mean GPA between two groups.
Insta P-value is greater than 5%, I fail to reject the null hypothesis at 5% level of significance. Hence there is no sufficient evidence to conclude that there is a significant difference in the mean GPA between two groups.
C)
The null hypothesis, ho: there is no significant difference in the mean GPA between the two groups. this is a test against an alternative hypothesis, h1: there is a significant difference in the mean GPA between two groups. (since the direction of the alternative hypothesis is not mentioned I can say that this is a two-tailed test)
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