Question
Test the following hypotheses by using the 2 goodness of fit test. H 0 : p A = 0.40, p B = 0.40, and p
Test the following hypotheses by using the 2 goodness of fit test.
H0: | pA = 0.40, pB = 0.40, and pC = 0.20 |
Ha: | The population proportions are not pA = 0.40, pB = 0.40, and pC = 0.20. |
A sample of size 200 yielded 20 in category A, 60 in category B, and 120 in category C. Use = 0.01 and test to see whether the proportions are as stated in H0.
(a)Use the p-value approach.
Find the value of the test statistic.
Find the p-value. (Round your answer to four decimal places.)
p-value =
State your conclusion.
a. Do not reject H0. We cannot conclude that the proportions differ from 0.40, 0.40, and 0.20.
b. Reject H0. We conclude that the proportions differ from 0.40, 0.40, and 0.20.
c. Do not reject H0. We cannot conclude that the proportions are equal to 0.40, 0.40, and 0.20.
d. Reject H0. We conclude that the proportions are equal to 0.40, 0.40, and 0.20.
Repeat the test using the critical value approach.
Find the value of the test statistic.
State the critical values for the rejection rule. (If the test is one-tailed, enter NONE for the unused tail. Round your answers to three decimal places.)
test statistic
test statistic
State your conclusion.
a. Reject H0. We conclude that the proportions are equal to 0.40, 0.40, and 0.20.
b. Do not reject H0. We cannot conclude that the proportions differ from 0.40, 0.40, and 0.20.
c. Do not reject H0. We cannot conclude that the proportions are equal to 0.40, 0.40, and 0.20.
d. Reject H0. We conclude that the proportions differ from 0.40, 0.40, and 0.20.
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started