Two teaching methods and their effects on science test scores are being reviewed. A random sample of 1414 students, taught in traditional lab sessions, had a mean test score of 76.376.3 with a standard deviation of 5.35.3. A random sample of 1818 students, taught using interactive simulation software, had a mean test score of 86.486.4 with a standard deviation of 44. Do these results support the claim that the mean science test score is lower for students taught in traditional lab sessions than it is for students taught using interactive simulation software? Let μ1μ1 be the mean test score for the students taught in traditional lab sessions and μ2μ2 be the mean test score for students taught using interactive simulation software. Use a significance level of α=0.05α=0.05 for the test. Assume that the population variances are equal and that the two populations are normally distributed. Step 2 of 4 : Compute the value of the t test statistic. Round your answer to three decimal places.
Two teaching methods and their effects on science test scores are being reviewed. A random sample of 1414 students, taught in traditional lab sessions, had a
Compute the value of the t test statistic. Round your answer to three decimal places.
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