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A statistics teacher claims that, on the average, 20% of her students get a grade of A, 35% get a B, 25% get a C, 10% get a D, and 10% get an F. The grades of a random sample of 100 students were recorded. The following table presents the results. A D Grade Observed B 41 с 20 28 6 Use the 0.05 level of significance to test the claim that the grades follow the distribution claimed by the teacher. F 5

A statistics teacher claims that, on the average, 20% of her students get a grade of A, 35% get a B, 25% get a C, 10% get a D, and 10% get an F. The grades of a random sample of 100 students were recorded. The following table presents the results. A D Grade Observed B 41 с 20 28 6 Use the 0.05 level of significance to test the claim that the grades follow the distribution claimed by the teacher. F 5

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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A statistics teacher claims that, on the average, 20% of her students get a grade of A, 35% get a B, 25% get a C, 10% get a D, and 10% get an F. The grades of a random sample of 100 students were recorded. The following table presents the results. A D Grade Observed B 41 с 20 28 6 Use the 0.05 level of significance to test the claim that the grades follow the distribution claimed by the teacher. F 5
Transcribed Image Text:A statistics teacher claims that, on the average, 20% of her students get a grade of A, 35% get a B, 25% get a C, 10% get a D, and 10% get an F. The grades of a random sample of 100 students were recorded. The following table presents the results. A D Grade Observed B 41 с 20 28 6 Use the 0.05 level of significance to test the claim that the grades follow the distribution claimed by the teacher. F 5
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