STA-282 Homework#LS questions Name For each question, please cirele the response

Question

STA-282 Homework#LS questions Name For each question, please cirele the response that represents the best answer. A researcher has recruited 200 volunteers to participate in a study. The researcher wishes to evaluate effect that alcohol has on an individual's groups, Group #1 will serve as a control group in which participants drink four l-ounce cups of a liquid that looks, smells, and tastes like alcohol (but isn't alc as the experimental group in which participants drink four 1-ounce cups of 80-proof alcohol in 5-minute increments. After drinking the last 1-ounce cup, the participants sit for 20 minutes. After the 20-minute rest period, the number of obstacles hit on a driving course is recorded. reaction time. The 200 volunteers are randomly divided into two 15-minute increments. Group #2 will serve 1. What is the response variable (variable of interest being analyzed from the data) in this experiment? A. Number of obstacles hit on a driving course. The amount of alcohol consumed. B. C. D. Whether or not the volunteer was drunk or not. The effects of alcohol on reaction time. 2· The response variable in this experiment is which of the following type: A. Qualitative B. Quantitative Discrete C. Quantitative Continuous D. Random 3. This type of experimental design is considered: An observational study, because no outside factors are being controlled. A designed experiment since by randomly assigning providing fake alcohol we are controlling for possible effects not related to the study A census, since this information would be readily available from government sources. We are examining a random sample of people who like to drink. A. B. to s and C. D.

Explanation / Answer

Here we are recording the number of obstacles hit on a driving course after having treatment i.e. after taking one of the alcoholic or non alcoholic drink.

Hence,

a) Response Variable - Number of obstacles hit on a driving course

Option A is correct.

b) Response variable is quantitative discrete.

Option B is correct.

c) This is a designed experiment and hence,

Option B is correct.

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