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The first-order model was fit to n = 19 data points with the results shown in the SAS printout provided below.
a. Find R2 and interpret its value.
b. Find R2a and interpret its value.
c. Test the null hypothesis that ß1 = ß2 = 0 against the alternative hypothesis that at least one of ß1, and ß2 is nonzero. Calculate the test statistic using the two formulas given in this section, and compare your results to each other and to that given on the printout. Use α = .05 and interpret the result of your test.
d. Find the observed significance level for this test on the printout and interpret it
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Explain why or why not and then use that approximation to find this probability
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