CPMP, again During the study described in Exercise 57, students in both CPMP and traditional classes took

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CPMP, again During the study described in Exercise 57, 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?

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Performance on Algebraic Symbolic Manipulation without Use of Calculators
a) Write appropriate hypotheses.
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.
2-Sample t-Test of (1 - (2 ≠ 0 t-Statistic = -6.451 w/574.8761 df P d) State a conclusion about the CPMP program
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Related Book For  book-img-for-question

Stats Data And Models

ISBN: 662

4th Edition

Authors: Richard D. De Veaux, Paul D. Velleman, David E. Bock

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