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tics teacher cla ms that, on average, 20% of his class get an A, 25 get a B, 35% get a C, 10% get a D and the rest get an F. The grades of a random sample of his students over the years is recorded. Test the claim at 5% significance. Round to the fourth as needed. Observed Categories Frequency A B с D F 45 36 95 9 41 Expected Frequency Test Statistic: Degrees of Freedom: p-val: Decision Rule: Select an answer Did something significant happen? Select an answer There Select an answer enough evidence to conclude Select an answer

tics teacher cla ms that, on average, 20% of his class get an A, 25 get a B, 35% get a C, 10% get a D and the rest get an F. The grades of a random sample of his students over the years is recorded. Test the claim at 5% significance. Round to the fourth as needed. Observed Categories Frequency A B с D F 45 36 95 9 41 Expected Frequency Test Statistic: Degrees of Freedom: p-val: Decision Rule: Select an answer Did something significant happen? Select an answer There Select an answer enough evidence to conclude Select an answer

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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A statistics teacher claims that, on average, 20% of students in his class get an A, 25% get a B, 35% get a C, 10% get a D and the rest get an F. The grades of a random sample of his students over the years is recorded. Test the claim at 5% significance. Round to the fourth as needed. Categories A B с D F Observed Frequency 45 36 95 9 41 Expected Frequency Test Statistic: Degrees of Freedom: p-val: Decision Rule: Select an answer Did something significant happen? Select an answer There Select an answer enough evidence to conclude Select an answer
Transcribed Image Text:A statistics teacher claims that, on average, 20% of students in his class get an A, 25% get a B, 35% get a C, 10% get a D and the rest get an F. The grades of a random sample of his students over the years is recorded. Test the claim at 5% significance. Round to the fourth as needed. Categories A B с D F Observed Frequency 45 36 95 9 41 Expected Frequency Test Statistic: Degrees of Freedom: p-val: Decision Rule: Select an answer Did something significant happen? Select an answer There Select an answer enough evidence to conclude Select an answer
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