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 10% significance.

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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 10% significance.
Round to the fourth as needed.
Categories
A
B
с
D
F
Observed
Frequency
41
33
92
10
29
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 10% significance. Round to the fourth as needed. Categories A B с D F Observed Frequency 41 33 92 10 29 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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