Question

Consider the data below of inches of rainfall per month for two different regions in the Northwestern United States:
                Plains      Mountains
April         20.1          12.9
May         15.3          17.8
June         19.8          15.4
July          17.4          11.2
August    16.8          13.7
Using SPSS, perform a two-sample t-test against the hypothesis that there is not the same amount of rainfall in both regions in the Northwestern United States with a significance level of 0.05. What are the degrees of freedom of your test statistic?

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Resuts:
Ho(Null hypothesis): There is no significant difference in the average rainfall in both the regions
Ha(Alternate hypothesis): There is a significant difference in the average rainfall in both the regions....

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