Question: Refer to Example 10 on whether arthroscopic surgery is better than placebo. The following table shows the pain scores one year after surgery. Using software

Refer to Example 10 on whether arthroscopic surgery is better than placebo. The following table shows the pain scores one year after surgery. Using software (such as MINITAB) that can conduct analyses using summary statistics, compare the placebo to the debridement group using a 95% confidence interval. Use the method that assumes equal population standard deviations. Explain how to interpret the interval found using software.

Knee Pain Score Group Placebo Arthroscopic lavage Arthroscopic- Sample Size Mea Standard Deviation 60 48.9 21.9 61 54.8 19.8 debridement 59 51.7 22.4

Step by Step Solution

★★★★★

3.34 Rating (163 Votes )

There are 3 Steps involved in it

1 Expert Approved Answer

Step: 1 Unlock

Difference mu 1 mu 2 Estimate for difference 280000 95 CI for difference 1084257 524257 TTest of d... View full answer

Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock

Step: 3 Unlock

Document Format (1 attachment)

531-M-S-H-T (2738).docx

120 KBs Word File

Students Have Also Explored These Related Statistics Questions!

Refer to Example 10, Arthroscopic Surgery. Here we show MINITAB output comparing mean knee pain scores for the placebo (Group 1) to debridement arthroscopic surgery (Group 2). a. State and interpret...

Refer to Example 10, Arthroscopic Surgery. Here we show MINITAB output comparing mean knee pain scores for the placebo (Group 1) to lavage arthroscopic surgery (Group 2) assuming equal population...

Refer to Example 10.6 on page 411. The researchers also obtained the following data on the number of acute postoperative days in the hospital using the dynamic and static systems. At the 5%...

10.91 Surgery versus placebo for knee pain Refer to Example 10 on whether arthroscopic surgery is better than placebo. The following table shows the pain scores one year after surgery. Using software...

3 COLLEGE ALGEBRA - TRIGONOMETRY Business and Finance (MAT115) This course will start with a review of basic algebra (factoring, solving linear equations, and equalities, etc.) and proceed to a study...

(Chapter 13) Instructions: a. You will work on this assignment in groups of two people. b. The statistical package Minitab MUST be used to do the assignment. c. Include the Minitab outputs of your...

PLEASE COMPLETE NO LATER THAN 11/04 @8am Each question(1,2,& 3) must be a minimum of 200 words. Please EXPLAIN answers in FULL detail and make answers knowledgeable based off the attached reading,...

I need to see the SPSS output. You need to have all z-scores, all charts, all descriptives data from SPSS, everything you used to answer the questions. I am sending you what the previous tutor sent...

To be solved by DKetan. Using Chapter 7 of your text as a reference, define a standard cost and explain what constitutes the components of a standard cost. Describe the advantages and disadvantages...

In an experiment on synapses, you bathe a synapse in a medium which is similar to extracellular fluid except that it has no calcium. What is the expected results? a) the presynaptic neuron cannot...

Multiple Choice Questions 1. Auditors use analytical procedures to help identify potential misstatements in inventory. Which of the following would not be useful for this purpose? a. Calculating...

20. What is the sum of each pair of hexadecimal integers? a. 7C4 3BE b. B69 7AD

Look back at the questions raised in Toolkit Exercise 5.1. How could the existing structures and systems have been approached and used differently to advance the desired change?

14.7 Years of education A recent General Social Survey asked students at an Australian university, What is the ideal number of years of education for an individual? Do responses tend to depend on the...

14.8 Smoking and personality A study about smoking and personality (by A. Terracciano and P. Costa, Addiction, vol. 99, 2004, pp. 472481) used a sample of 1638 adults in the Baltimore Longitudinal...

14.9 French cuisine The restaurant guide Zagat compiles customer ratings on the quality of food on a 30-point scale. The data set French Cuisine on the books website contains a random sample of...

Case NASTY-AS-CAN-BE CANDY National Foods is considering producing a new candy, Nasty-As- Can-Be. National has spent two years and $450,000 developing this product. National has also test marketed...

Twice Shy Industries has a debtequity ratio of 1.1. Its WACC is 9.6 percent, and its cost of debt is 7.2 percent. The corporate tax rate is 35 percent. a. What is the companys cost of equity capital?...

Examine the ways that general programming languages can interact with a data analysis language.