An educational psychologist would like to determine whether access to computers has an effect on grades for high school students. One group of n = 16 students has home room each day in a computer classroom which each student has a computer. A comparison group of n = 16 students has home room in a traditional classroom. At the end of the school year, the average grade was recorded for each student. The data are as follows:Computer: Traditional:M = 86 M = 82.5SS = 1005 SS = 1155 A)Is there a significant difference between the two groups on school performance? Use a two-tailed test with α = .05. B)Conduct a 95% confidence interval for the population mean difference between a computer classroom and a regular classroom. (1 pt.)C)Compare your hypothesis test decision and the confidence interval result. Are they consistent with each other? Please explain. (0.5 pt.)

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Description: An educational psychologist would like to determine whether access to computers has an effect on grades for high school students. One group of n = 16 students has home room each day in a computer classroom which each student has a computer. A compari

A) Test hypothesis are H0 : µ1 - µ2 = 0 H1 : µ1 - µ2 ≠ 0 Pooled variance Sp2 =…

Answered: An educational psychologist would like…

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

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.6: Summarizing Categorical Data

Problem 10CYU

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An educational psychologist would like to determine whether access to computers has an effect on grades for high school students. One group of n = 16 students has home room each day in a computer classroom which each student has a computer. A comparison group of n = 16 students has home room in a traditional classroom. At the end of the school year, the average grade was recorded for each student. The data are as follows:

Computer: Traditional:

M = 86 M = 82.5
SS = 1005 SS = 1155

A)Is there a significant difference between the two groups on school performance? Use a two-tailed test with α = .05.

B)Conduct a 95% confidence interval for the population mean difference between a computer classroom and a regular classroom. (1 pt.)

C)Compare your hypothesis test decision and the confidence interval result. Are they consistent with each other? Please explain. (0.5 pt.)

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