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A statistics teacher wants to assess whether her remedial teaching has been effective for her five...

A statistics teacher wants to assess whether her remedial teaching has been effective for her five students. She decides to conduct a related samples t-test and records the following grades for students prior to and after receiving her tutoring.

Before: 2.4, 2.5, 3.0, 2.9, 2.7

After: 3.0, 2.9, 3.5, 3.2, 3.5

(a) Test whether or not her tutoring is effective at a 0.05 level of significance. State the value of the test statistic. (Round your answer to three decimal places.)

(b) Compute effect size using estimated Cohen's d. (Round your answer to two decimal places.)

Math   Statistics-And-Probability   
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