4. A researcher wanted to examine the effect of a new math study skills program on second graders. Fifteen students took the new study skills program for six weeks and then took a standardized math exam, which is known to have a population mean score of u 80. The scores on the exam for the 15 students (who took the study skills program) are reported below Scores on the standardized math exam for the 15 students: 79, 85, 86, 75, 82, 84, 85, 81, 75, 84, 78, 90, 85, 83, 80 Test to see whether the students who took the new study skills program have significantly higher test scores than the national average. Perform the appropriate test in SPSS using a .05 a. State the null and alternative hypotheses below b. What type of test should be run on the data (be specific with the exact name of the test)? For example, don't just state "t test," but the specific test used c. What is the conclusion of the hypothesis test? State the p-value and the decision about the hypothesis test below (Don't write the results here that will be done in (d) below -just state p and whether Ho is rejected.) d. What is the effect size for the study? Calculate and report the effect size below. Indicate the magnitude of the effect size according to Cohen's standards and interpret what the effect size means in terms of standard deviation units. e. Write the results of the test in APA format below.
4. A researcher wanted to examine the effect of a new math study skills program on second graders. Fifteen students took the new study skills program for six weeks and then took a standardized math exam, which is known to have a population mean score of u 80. The scores on the exam for the 15 students (who took the study skills program) are reported below Scores on the standardized math exam for the 15 students: 79, 85, 86, 75, 82, 84, 85, 81, 75, 84, 78, 90, 85, 83, 80 Test to see whether the students who took the new study skills program have significantly higher test scores than the national average. Perform the appropriate test in SPSS using a .05 a. State the null and alternative hypotheses below b. What type of test should be run on the data (be specific with the exact name of the test)? For example, don't just state "t test," but the specific test used c. What is the conclusion of the hypothesis test? State the p-value and the decision about the hypothesis test below (Don't write the results here that will be done in (d) below -just state p and whether Ho is rejected.) d. What is the effect size for the study? Calculate and report the effect size below. Indicate the magnitude of the effect size according to Cohen's standards and interpret what the effect size means in terms of standard deviation units. e. Write the results of the test in APA format below.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Transcribed Image Text:4. A researcher wanted to examine the effect of a new math study skills program on second
graders. Fifteen students took the new study skills program for six weeks and then took a
standardized math exam, which is known to have a population mean score of u 80. The scores
on the exam for the 15 students (who took the study skills program) are reported below
Scores on the standardized math exam for the 15 students:
79, 85, 86, 75, 82, 84, 85, 81, 75, 84, 78, 90, 85, 83, 80
Test to see whether the students who took the new study skills program have significantly higher
test scores than the national average. Perform the appropriate test in SPSS using a .05
a. State the null and alternative hypotheses below
b. What type of test should be run on the data (be specific with the exact name of the test)? For
example, don't just state "t test," but the specific test used
c. What is the conclusion of the hypothesis test? State the p-value and the decision about the
hypothesis test below
(Don't write the results here that will be done in (d) below -just state p and whether Ho is rejected.)
d. What is the effect size for the study? Calculate and report the effect size below. Indicate the
magnitude of the effect size according to Cohen's standards and interpret what the effect size
means in terms of standard deviation units.
e. Write the results of the test in APA format below.
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