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

50.1K

Verified Solution

Question

Statistics

Two teaching methods and their effects on science test scoresare being reviewed. A random sample of 16 16 students, taught intraditional lab sessions, had a mean test score of 80.8 80.8 with astandard deviation of 4.4 4.4 . A random sample of 14 14 students,taught using interactive simulation software, had a mean test scoreof 85.6 85.6 with a standard deviation of 5.1 5.1 . 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 Î¼1 Î¼ 1be the mean test score for the students taught in traditional labsessions and Î¼2 Î¼ 2 be the mean test score for students taughtusing interactive simulation software. Use a significance level ofÎ±=0.05 Î± = 0.05 for the test. Assume that the population variancesare equal and that the two populations are normally distributed.Step 2 of 4 : Compute the value of the t test statistic. Round youranswer to three decimal places.

Answer & Explanation Solved by verified expert

3.6 Ratings (482 Votes)

Sample 1Sample 2Mean808856Standard Deviation4451Count1614The null hypotheiss to be tested isH0 The mean test score in the traditional lab sessions is thesame as See Answer

Get Answers to Unlimited Questions

Join us to gain access to millions of questions and expert answers. Enjoy exclusive benefits tailored just for you!

Membership Benefits:

Unlimited Question Access with detailed Answers
Zin AI - 3 Million Words
10 Dall-E 3 Images
20 Plot Generations
Conversation with Dialogue Memory
No Ads, Ever!
Access to Our Best AI Platform: Flex AI - Your personal assistant for all your inquiries!

Become a Member