Question 5 (10 marks) a. Write the null and alternative hypothesis for the following and determine if it is a two-tailed, a left-tailed or a right-tailed test. i. A researcher is studying the effects of radical exercise program on knee surgery patients. There is a good chance the therapy will improve recovery time, but there's also the possibility it will make it worse. Average recovery times for knee surgery patients is 8.2 weeks. ii. Alumni group of a private institution wants to test if the college student, on the average, take less than 4 years to graduate.
Question 5 (10 marks) a. Write the null and alternative hypothesis for the following and determine if it is a two-tailed, a left-tailed or a right-tailed test. i. A researcher is studying the effects of radical exercise program on knee surgery patients. There is a good chance the therapy will improve recovery time, but there's also the possibility it will make it worse. Average recovery times for knee surgery patients is 8.2 weeks. ii. Alumni group of a private institution wants to test if the college student, on the average, take less than 4 years to graduate.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 23PFA
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![Question 5 (10 marks)
a. Write the null and alternative hypothesis for the following and determine if it is
a two-tailed, a left-tailed or a right-tailed test.
i. A researcher is studying the effects of radical exercise program on knee
surgery patients. There is a good chance the therapy will improve recovery
time, but there's also the possibility it will make it worse. Average recovery
times for knee surgery patients is 8.2 weeks.
ii.
Alumni group of a private institution wants to test if the college student, on
the average, take less than 4 years to graduate.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0bbdb639-a3f8-4043-855e-1ccb9a4015d8%2Fdca43789-2f63-4890-a72a-113fe60255c8%2F0cuc17a_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question 5 (10 marks)
a. Write the null and alternative hypothesis for the following and determine if it is
a two-tailed, a left-tailed or a right-tailed test.
i. A researcher is studying the effects of radical exercise program on knee
surgery patients. There is a good chance the therapy will improve recovery
time, but there's also the possibility it will make it worse. Average recovery
times for knee surgery patients is 8.2 weeks.
ii.
Alumni group of a private institution wants to test if the college student, on
the average, take less than 4 years to graduate.
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