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13. The table below summarizes baseline characteristics on patients participating in a clinical trial. Characteristic Placebo (n=125) Experimental (n=125) P Mean (+ SD) Age 54 + 4.5 53 + 4.9 0.7856 % Female 39% 52% 0.0289 % Less than High School Education 24% 22% 0.0986 % Completing High School 37% 36% % Completing Some College 39% 42% Mean (+ SD) Systolic Blood Pressure 136 + 13.8 134 + 12.4 0.4736 Mean (+ SD) Total Cholesterol 214 + 24.9 210 + 23.1 0.8954 % Current Smokers 17% 15% 0.5741 % with Diabetes 8% 3% 0.0438 a) Are there any statistically significant differences in baseline characteristics between treatment groups? Justify your answer. b) Write the hypotheses and the test statistic used to compare ages between groups. (No calculations - just H0, H1 and form of the test statistic) c) Write the hypotheses and the test statistic used to compare % females between groups. (No calculations - just H0, H1 and form of the test statistic) d) Write the hypotheses and the test statistic used to compare educational levels between groups. (No calculations - just H0, H1 and form of the test statistic)
q1. in a pure exchange economy with two goods g and h two traders amos and elise have cobb-douglas utility functions.
Compute the expected time until the 100 th student arrives. What is the probability that the time between the arrival of the 200th and the 201st student exceeds 2 days?
question 1 a package delivery service claims that no more than 5 percent of all packages arrive at the address late.
Find the equation of the regression line for the given data. What is the predicted value of Y when X = -2? What is the predicted value of Y and find the correlation coefficient between X and Y. Is there a weak or strong, positive or negative corr..
The portfolio assets are inverted in the Dow Jones fund
If the coefficient of determination between two independent variables is 0.20, what is the VIF?
2. an investigator wants to assess whether smoking is a risk factor for pancreatic cancer. electronic medical records
Decision Trees are graphic displays of the decision process. When do you feel it is appropriate to use decision trees?
Demonstrate how the test statistics you calculated in parts (b) and (c) relate to the statistics M and S you get from SAS.
What does p = .05 mean? What are some misconceptions about the meaning of p = .05? Why are they wrong? Should all research adhere to the p = .05 standard for significance? Why or why not?
question 1 one subway station in toronto has 6 turnstiles each of which can be controlled by the station manager to be
Consider a machine that fills soda bottles.
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