6. A statistics tutor wants to assess whether her remedial tutoring has been effective for her 10students. Using a pre-post design, she records the grades for a group of students prior to andafter receiving her tutoring. The grades recorded are given in the table.i.Using SPSS, test whether or not her tutoring is effective at a .05 level of significance.State the value of the test statistic and the decision to retain or reject the nullii.iii.Before3.93.12.72.44.34.41.11.92.82.9hypothesis.Compute effect size using estimated Cohen's d.ScoresAfter2.24.83.92.93.842.72.23.91.5

BeforeAfter3.92.23.14.82.73.92.42.94.33.84.444.12.71.92.22.83.92.91.5

6. A statistics tutor wants to assess whether her remedial tutoring has been effective for her 10 students. Using a pre-post design, she records the grades for a group of students prior to and after receiving her tutoring. The grades recorded are given in the table. i. ii. iii. Before 3.9 3.1 2.7 2.4 4.3 4.4 1.1 1.9 2.8 2.9 Using SPSS, test whether or not her tutoring is effective at a .05 level of significance. State the value of the test statistic and the decision to retain or reject the null hypothesis. Compute effect size using estimated Cohen's d. Scores After 2.2 4.8 3.9 2.9 3.8 4 2.7 2.2 3.9 1.5

6. A statistics tutor wants to assess whether her remedial tutoring has been effective for her 10 students. Using a pre-post design, she records the grades for a group of students prior to and after receiving her tutoring. The grades recorded are given in the table. i. ii. iii. Before 3.9 3.1 2.7 2.4 4.3 4.4 1.1 1.9 2.8 2.9 Using SPSS, test whether or not her tutoring is effective at a .05 level of significance. State the value of the test statistic and the decision to retain or reject the null hypothesis. Compute effect size using estimated Cohen's d. Scores After 2.2 4.8 3.9 2.9 3.8 4 2.7 2.2 3.9 1.5

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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