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1. Hypothesis Testing. Write the null and alternative hypothesis of the following problem. You may write it in symbol or in words. 1. A researcher thinks that if a knee surgery patients will go to the physical therapy twice a week (instead of three times), their recovery period will be longer than 8.2 weeks. 2. A researcher is studying the effects of radical exercise program on knee surgery patients. There is a good chance that the therapy will improve recovery time, but there is also the possibility it will make it worse. Average recovery times for knee surgery patients is 8.2 weeks. 3. No more than 30% of the registered voters in Bacolod City voted in the primary election.

1. Hypothesis Testing. Write the null and alternative hypothesis of the following problem. You may write it in symbol or in words. 1. A researcher thinks that if a knee surgery patients will go to the physical therapy twice a week (instead of three times), their recovery period will be longer than 8.2 weeks. 2. A researcher is studying the effects of radical exercise program on knee surgery patients. There is a good chance that the therapy will improve recovery time, but there is also the possibility it will make it worse. Average recovery times for knee surgery patients is 8.2 weeks. 3. No more than 30% of the registered voters in Bacolod City voted in the primary election.

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 30E
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1. Hypothesis Testing. Write the null and alternative hypothesis of the following problem. You may write it in symbol or in words. 1. A researcher thinks that if a knee surgery patients will go to the physical therapy twice a week (instead of three times), their recovery period will be longer than 8.2 weeks. 2. A researcher is studying the effects of radical exercise program on knee surgery patients. There is a good chance that the therapy will improve recovery time, but there is also the possibility it will make it worse. Average recovery times for knee surgery patients is 8.2 weeks. 3. No more than 30% of the registered voters in Bacolod City voted in the primary election. 4. A medical trial is conducted to test whether or not a new medicine reduces cholesterol by 25%. 5. We want to test if college students take less than five years to graduate on college, on the average. II. Problem Solving. Show your complete process. a. Null Hypothesis: b. Test Tool: c. Test Value: d. Decision: e. Conclusion: 1. College students were assigned to three study methods in an experiment to determine the effect of the study technique on learning. The three methods are; read only, read and underline, and read and take notes. The test scores are recorded below. Perform the appropriate test tool to be use, at the 0.05 level of significance. Techniques Read and underline 18 14 11 Read only Read and take notes 16 21 20 18 20 19 15 15
Transcribed Image Text:1. Hypothesis Testing. Write the null and alternative hypothesis of the following problem. You may write it in symbol or in words. 1. A researcher thinks that if a knee surgery patients will go to the physical therapy twice a week (instead of three times), their recovery period will be longer than 8.2 weeks. 2. A researcher is studying the effects of radical exercise program on knee surgery patients. There is a good chance that the therapy will improve recovery time, but there is also the possibility it will make it worse. Average recovery times for knee surgery patients is 8.2 weeks. 3. No more than 30% of the registered voters in Bacolod City voted in the primary election. 4. A medical trial is conducted to test whether or not a new medicine reduces cholesterol by 25%. 5. We want to test if college students take less than five years to graduate on college, on the average. II. Problem Solving. Show your complete process. a. Null Hypothesis: b. Test Tool: c. Test Value: d. Decision: e. Conclusion: 1. College students were assigned to three study methods in an experiment to determine the effect of the study technique on learning. The three methods are; read only, read and underline, and read and take notes. The test scores are recorded below. Perform the appropriate test tool to be use, at the 0.05 level of significance. Techniques Read and underline 18 14 11 Read only Read and take notes 16 21 20 18 20 19 15 15
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