1.) True or False: dependent 2.) True or False: A 2-sample t-test is used to com
ID: 3053951 • Letter: 1
Question
1.) True or False: dependent 2.) True or False: A 2-sample t-test is used to compare two populations in which the experimental units are Blocking always increases the statistical power of a study over using a CRD approach 3.) You are setting up a paired study. There are 2 treatments. You want to block OUT the effect of initial weight. The first experimental unit you pick for a block has an initial weight of 20 grams. Which of the following would be the best choice (given your goals) for a 2nd experimental unit in the same block? A.) 24 B.) 19 4.) True or False Paired studies are a type of block design with only 2 treatments 5.) True or False: For the Paired t-test all experimental units (both within and among blocks) are independent from each other Determine whether the following is an example of an independent (Completely Randomized Design) or dependent (Blocked Design) study: The accuracy of verbal responses is tested in an experiment in which subjects report their weights verbally, this weight is recorded, and then the same person is weighed on a physician's scale and the actual weight is recorded for comparison. A.) CRD Study B.) Block Study 6.) 7.) Determine whether the following is an example of an independent (Completely Randomized Design) or dependent (Blocked Design) study: The effectiveness of Prilosec for treating heartburn is tested by measuring gastric acid secretions in each patient before and again after drug treatment. A.) CRD Study B.) Block Study 8.) True or False: Twin studies are analyzed using a 2-sample t-testExplanation / Answer
1) Given statement is FALSE
The correct statement is A 2 sample t-test is used to compare two population in which the experimental units are independents.
2) Given statement is TRUE.
Because blocking reduces error so the power of the study over using CRD approach.
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