University officials hope that changes they have made have improved the retention rate. Last year, a sample of 20602060 freshmen showed that 15291529 returned as sophomores. This year, 16051605 of 20852085 freshmen sampled returned as sophomores. Determine if there is sufficient evidence at the 0.050.05 level to say that the retention rate has improved. Let last year's freshmen be Population 1 and let this year's freshmen be Population 2.   Step 1 of 3:  State the null and alternative hypotheses for the test. Fill in the blank below. H0Ha: p1=p2: p1⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯⎯p2   Step 2 of 3 :   Compute the value of the test statistic. Round your answer to three decimal places. 3) draw a conclusion and form a decision (word it like "we fail to reject the null hypothesis and conclude that there is sufficient evidence")

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