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Two teaching methods and their effects on science test scores are being reviewed. A random sample...

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Statistics

Two teaching methods and their effects on science test scoresare being reviewed. A random sample of 13 13 students, taught intraditional lab sessions, had a mean test score of 74.8 74.8 with astandard deviation of 4.3 4.3 . A random sample of 19 19 students,taught using interactive simulation software, had a mean test scoreof 87.3 87.3 with a standard deviation of 5.6 5.6 . Do theseresults support the claim that the mean science test score is lowerfor students taught in traditional lab sessions than it is forstudents taught using interactive simulation software? Let μ1 μ 1be the mean test score for the students taught in traditional labsessions and μ2 μ 2 be the mean test score for students taughtusing interactive simulation software. Use a significance level ofα=0.05 α = 0.05 for the test. Assume that the population variancesare equal and that the two populations are normally distributed.Step 1 of 4 : State the null and alternative hypotheses for thetest.

Can u post all 4 steps ?

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1Hypothesis H0 mu1 mu2 vs H1 mu 1 mu22 Test Statistics    See Answer
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