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Category > Statistics Posted 07 May 2017 My Price 12.00

Write an appropriate hypothesis.

CPMP, again. During the study described in Exercise 7, students in both CPMP and traditional classes took another Algebra test that did not allow them to use calculators. The table below shows the results. Are the mean scores of the two groups significantly different?

a) Write an appropriate hypothesis.

b) Do you think the assumptions for inference are satisfied? Explain.

c) Here is computer output for this hypothesis test. Explain what the P-value means in this context.

d) State a conclusion about the CPMP program.

Exercise 7:

Learning math. The Core Plus Mathematics Project (CPMP) is an innovative approach to teaching Mathematics that engages students in group investigations and mathematical modeling. After field tests in 36 high schools over a three-year period, researchers compared the performances of CPMP students with those taught using a traditional curriculum. In one test, students had to solve applied Algebra problems using calculators. Scores for 320 CPMP students were compared to those of a control group of 273 students in a traditional Math program. Computer software was used to create a confidence interval for the difference in mean scores. (Journal for Research in Mathematics Education, 31, no. 3[2000])

a) What’s the margin of error for this confidence interval?

b) If we had created a 98% CI, would the margin of error be larger or smaller?

c) Explain what the calculated interval means in this context.

d) Does this result suggest that students who learn Mathematics with CPMP will have significantly higher mean scores in Algebra than those in traditional programs? Explain

Answers

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Status NEW Posted 07 May 2017 05:05 PM My Price 12.00

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file 1494176819-Answer.docx preview (316 words )
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