Answered: In table below are indicated the… | bartleby

Algebra & Trigonometry with Analytic Geometry

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter10: Sequences, Series, And Probability

Section10.8: Probability

Problem 31E

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students passed and failed by three instructors. Test the hypothesis that the failure rates of the students of the three instructors
ecimals)
less)
than the critical value, we (dol don't)
ne failure rates of the three instructors are not all equal.

Question 4
In table below are indicated the numbers of students passed and failed by three instructors. Test the hypothesis that the failure
are different. Use
a=0.05-
Mr. X
Mr. Y
Mr. Z
Passed
Failed
50
45
50
15
35
a- Caiculate the test statistic (round to 2 decimals)
b- Find the critical value
c- What is your conclusion?
Answer: Since the i
: is (greater/less)
than the critical value, we (dol don't)
have enough evidence to conclude that the failure rates of the three instructors are not all equal.

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