Question 1 Based on a national survey of adults in U.S, 60 percent of adult believe a phone-in poll of 300,000 people rather than a random sample of 1000 people. Which would you be more likely to believe and why? Question 2 A clinical trial was conducted in which 29 participants were given a pig whipworm egg treatment every 3 weeks for 6 months. At the end of the study, they found 79.3 percent of the subjects in the study experienced a reduction in Chrohn’s disease symptoms. What is the concern with the experimental design of this study? Question 3 You are interested in determining the average age of students at the University. Come up with two questions (and the possible answers they would select, if applicable) in which: 1-Age would be classified as a categorical variable. 2-Age would be classified as a numerical variable Question 4 Knowing the value of determining the sample size prior to the start of a study, you use appropriate sample size formula and calculate the required sample size per treatment. At the completion of the study, your boss is disappointed and says “our sample size was to detect treatment differences” How is this possible? Explain your answer by discussing. The two measurements that are used to calculate sample size? How a change in these variables affects the sample size calculation and The challenges associated with calculating sample size required for a study
Question 1
Based on a national survey of adults in U.S, 60 percent of adult believe a phone-in poll of 300,000 people rather than a random sample of 1000 people. Which would you be more likely to believe and why?
Question 2
A clinical trial was conducted in which 29 participants were given a pig whipworm egg treatment every 3 weeks for 6 months. At the end of the study, they found 79.3 percent of the subjects in the study experienced a reduction in Chrohn’s disease symptoms.
What is the concern with the experimental design of this study?
Question 3
You are interested in determining the average age of students at the University. Come up with two questions (and the possible answers they would select, if applicable) in which:
1-Age would be classified as a categorical variable.
2-Age would be classified as a numerical variable
Question 4
Knowing the value of determining the sample size prior to the start of a study, you use appropriate sample size formula and calculate the required sample size per treatment. At the completion of the study, your boss is disappointed and says “our sample size was to detect treatment differences”
How is this possible? Explain your answer by discussing.
The two measurements that are used to calculate sample size?
How a change in these variables affects the sample size calculation and
The challenges associated with calculating sample size required for a study
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Question 2
A clinical trial was conducted in which 29 participants were given a pig whipworm egg treatment every 3 weeks for 6 months. At the end of the study, they found that 79.3 percent of the subjects in the study experienced a reduction in Chrohn’s disease symptoms.
What is the concern with the experimental design of this study?
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