1.A study was conducted that compared the time to awaken from a general anesthetic for

ten orthopedic patients that had two knee replacements done in two separate surgeries,

with the anesthetic differing for surgeries on the first knee and the second knee. The

anesthetic used for the first knee replacement was the same for all 10 patients, as was the case for the second knee replacement in the patients. All surgeries were performed by the same surgeon. The study was interested in determining whether there was a difference in the time to awaken following surgery for the two different anesthetics. The data for the

ten patients are provided in the table below. Use these data to answer the question below

the table.

Patient

Anesthetic 1 (1st Knee)

Time to awaken (in min)

Anesthetic 2 (2nd Knee)

Time to awaken (in min)

1

142

138

2

140

136

3

144

147

4

144

139

5

142

143

6

146

141

7

149

143

8

150

145

9

142

136

10

148

146

a.Conduct the appropriate statistical test to determine if there is a difference in the time to awaken from the anesthetics for the two different types of anesthetic. Assume =0.05. Show all calculations.[2 Marks]

b.What is the p-value for the test you performed in question a above? Does this p-value support the conclusion you reached in question a? Explain.[2 Marks]