The null and alternate hypotheses are: He: T1 ≤ 1₂ H₂: T₂ > TT₂ A sample of 100 observations from the first population indicated that x₁ is 70. A sample of 150 observations from the second population revealed x₂ to be 90. Use the 0.05 significance level to test the hypothesis. a. State the decision rule. (Round your answer to 2 decimal places.) HO is rejected if z> b. Compute the pooled proportion. (Round your answer to 2 decimal places.) Pooled proportion

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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The null and alternate hypotheses are:
He: T1 T₂
H₁: T₁ T₂
A sample of 100 observations from the first population indicated that x₁ is 70. A sample of 150 observations from the second
population revealed x₂ to be 90. Use the 0.05 significance level to test the hypothesis.
a. State the decision rule. (Round your answer to 2 decimal places.)
HO is rejected if z>
b. Compute the pooled proportion. (Round your answer to 2 decimal places.)
Pooled proportion
Transcribed Image Text:The null and alternate hypotheses are: He: T1 T₂ H₁: T₁ T₂ A sample of 100 observations from the first population indicated that x₁ is 70. A sample of 150 observations from the second population revealed x₂ to be 90. Use the 0.05 significance level to test the hypothesis. a. State the decision rule. (Round your answer to 2 decimal places.) HO is rejected if z> b. Compute the pooled proportion. (Round your answer to 2 decimal places.) Pooled proportion
c. Compute the value of the test statistic. (Round your answer to 2 decimal places.)
Value of the test statistic
d. What is your decision regarding the null hypothesis?
O Reject
O Do not reject
Transcribed Image Text:c. Compute the value of the test statistic. (Round your answer to 2 decimal places.) Value of the test statistic d. What is your decision regarding the null hypothesis? O Reject O Do not reject
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