Statistics Hypothesis Test Outputs
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JoLynn Miller is a physical therapist at the local senior center. She has been testing a new
procedure to improve leg strength that requires the patient to use weights to do repetitions
using a new apparatus. JoLynn decides to test the effectiveness of the apparatus on two
patients with similar mobility restrictions. The number of repetitions that each patient could
do is recorded below.
At the .05 significance level, is the number of repetitions for Patient A significantly less than
Patient B?
Use the five-step hypothesis test. Show your work or provide output. Be sure to interpret the result.
Patient A Patient B
2 3
4 7
9 5
3 8
2 4
3
Step 1:
Ho:
Ha:
Step 2:
Step 3:
Step 4:
Step 5:
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Solution Summary
The expert examines hypothesis tests for outputs and significance levels.
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Please see the attached files. The analysis is in the .docx, while the Excel spreadsheets can be found in the .xlsx.
JoLynn Miller is a physical therapist at the local senior center. She has been testing a new
procedure to improve leg strength that requires the patient to use weights to do repetitions
using a new apparatus. JoLynn decides to test the effectiveness of the apparatus on two
patients with similar mobility restrictions. The number of repetitions that each ...
Education
- BSc , Wuhan Univ. China
- MA, Shandong Univ.
Recent Feedback
- "Your solution, looks excellent. I recognize things from previous chapters. I have seen the standard deviation formula you used to get 5.154. I do understand the Central Limit Theorem needs the sample size (n) to be greater than 30, we have 100. I do understand the sample mean(s) of the population will follow a normal distribution, and that CLT states the sample mean of population is the population (mean), we have 143.74. But when and WHY do we use the standard deviation formula where you got 5.154. WHEN & Why use standard deviation of the sample mean. I don't understand, why don't we simply use the "100" I understand that standard deviation is the square root of variance. I do understand that the variance is the square of the differences of each sample data value minus the mean. But somehow, why not use 100, why use standard deviation of sample mean? Please help explain."
- "excellent work"
- "Thank you so much for all of your help!!! I will be posting another assignment. Please let me know (once posted), if the credits I'm offering is enough or you ! Thanks again!"
- "Thank you"
- "Thank you very much for your valuable time and assistance!"
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