Question

Please walk me through SPSS setup for this and complete the following, NOT just answer it, but show me how you did it on SPSS

Consider the data below of inches of rainfall per month for three different regions in the Northwestern United States: Please use SPSS and complete the following:

Plains Mountains. Forest

April 25.2. 13.0 9.7

May 17.1 18.1 16.5

June 18.9. 15.7. 18.1

July 17.3 11.3 13.0

August 16.5 14.0 15.4

Using SPSS, perform an ANOVA test for the hypothesis that there is not the same amount of rainfall in every region in the Northwestern United States with a significance level of 0.02. What are the two degrees of freedom of your test statistic?

Answer 1

Click OK

Click Data View

Enter the values here.

click post -hoc and enter 0.02

Then click continue and click OK. You will get output.

Hypothesis:

H₀: There is no difference in the amount of rainfall in every region in the Northwestern United States.

H₁: Atleast one region is significantly difference in the amount of rainfall in every region in the Northwestern United States

Two degrees of freedom for F statistic is 2 and 12

p-value = 0.076

Conclusion:

Since p-value = 0.076 which is greater than = 0.02. Hence we do not reject H0. So we conclude that there is no difference in the amount of rainfall in every region in the Northwestern United States at 2 % level of significance.