Answer to Question #19101 in Statistics and Probability for Jennifer

Question #19101
3. A researcher is interested in whether listening to music helps or hinders test-performance. To control for differences in cognitive level, this researcher decides to use a within-participants design. He selects a random sample of participants and has them study different material of equal difficulty in both the music and no music conditions. Participants take a 20-item quiz on the material. The table below shows the scores on the quiz. The study is completely counterbalanced to control for order effects. The scores obtained are measured on an interval-ratio scale and are normally distributed. Music No Music 17 17 16 18 15 17 16 17 18 19 18 18 a. What statistical test should be used to analyze the data? b. Is this a one- or two tailed test? c. Identify H0 and Ha for this study. d. Conduct the appropriate analysis. Should H0 be rejected? What should the researcher conclude? e. Calculate the 95 confidence interval.
Expert's answer

Need a fast expert's response?

Submit order

and get a quick answer at the best price

for any assignment or question with DETAILED EXPLANATIONS!

Comments

No comments. Be first!

Leave a comment

Ask Your question

LATEST TUTORIALS
New on Blog
APPROVED BY CLIENTS
paypal