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8. An English test has a mean of 104 points and a standard deviation of 24. A sample of 75 students are taught using a new method to see if their scores improved. The sample mean was 107 points. a) State the null and alternative hypotheses. b) Determine whether the results are statistically significant at a= .01. c) State your statistical decision. d) Write your answer in proper APA notation.

8. An English test has a mean of 104 points and a standard deviation of 24. A sample of 75 students are taught using a new method to see if their scores improved. The sample mean was 107 points. a) State the null and alternative hypotheses. b) Determine whether the results are statistically significant at a= .01. c) State your statistical decision. d) Write your answer in proper APA notation.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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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8. An English test has a mean of 104 points and a standard deviation of 24. A sample of 75 students are taught using a new method to see if their scores improved. The sample mean was 107 points. a) State the null and alternative hypotheses. b) Determine whether the results are statistically significant at a = .01. c) State your statistical decision. d) Write your answer in proper APA notation.
Transcribed Image Text:8. An English test has a mean of 104 points and a standard deviation of 24. A sample of 75 students are taught using a new method to see if their scores improved. The sample mean was 107 points. a) State the null and alternative hypotheses. b) Determine whether the results are statistically significant at a = .01. c) State your statistical decision. d) Write your answer in proper APA notation.
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