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3. An instructor tells her statistic classes that the following is the historical breakdown of grades on test 1, and that this class should expect the same. A C D F 6% 14% 36% 24% 20% A student believes that this is merely a motivating ploy to encourage students to study harder. 150 students take the first exam, producing the following observed results. A B C F 27 33 57 18 15 At the 0.05 level of significance, test the claim that the instructor's information about the grade breakdown on test 1 is not correct. Expected Values = n(%) Path: Stat -> Goodness of Fit -> Chi Square Test

3. An instructor tells her statistic classes that the following is the historical breakdown of grades on test 1, and that this class should expect the same. A C D F 6% 14% 36% 24% 20% A student believes that this is merely a motivating ploy to encourage students to study harder. 150 students take the first exam, producing the following observed results. A B C F 27 33 57 18 15 At the 0.05 level of significance, test the claim that the instructor's information about the grade breakdown on test 1 is not correct. Expected Values = n(%) Path: Stat -> Goodness of Fit -> Chi Square Test

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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need to show the 5 step hypothesis
3. An instructor tells her statistic classes that the following is the historical breakdown of grades on test 1, and that this class should expect the same. A C F 6% 14% 36% 24% 20% A student believes that this is merely a motivating ploy to encourage students to study harder. 150 students take the first exam, producing the following observed results. A D F 27 33 57 18 15 At the 0.05 level of significance, test the claim that the instructor's information about the grade breakdown on test 1 is not correct. Expected Values = n(%) Path: Stat -> Goodness of Fit -> Chi Square Test Step 5: There sufficient evidence to conclude that
Transcribed Image Text:3. An instructor tells her statistic classes that the following is the historical breakdown of grades on test 1, and that this class should expect the same. A C F 6% 14% 36% 24% 20% A student believes that this is merely a motivating ploy to encourage students to study harder. 150 students take the first exam, producing the following observed results. A D F 27 33 57 18 15 At the 0.05 level of significance, test the claim that the instructor's information about the grade breakdown on test 1 is not correct. Expected Values = n(%) Path: Stat -> Goodness of Fit -> Chi Square Test Step 5: There sufficient evidence to conclude that
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