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A researcher wishes to determine the performance level of students with pre-school education and with no preschool education. Fifteen senior high school students with pre- school education and fifteen senior high school students with no pre-school education were randomly selected and the results are tabulated below. Is it safe to conclude that those with pre-school education have a better performance than those with no pre- school education? Use a = 0.01. (10 pts.) Education With pre-school education With no pre-school education A. State the Null and Alternative Hypotheses: * (mean) s (standard deviation) 89.4 85.2 H₂: Ha: B. Specify the level of significance a= F. Decision G. Conclusion C. Determine the test statistic and the degree of freedom Test statistic: Tailed Test: df= D. Critical/Tabulated Value/tcritical tcritical = E. Computed Value/t computed 3.25 2.85 n (sample size) 15 15