Jhanet Claros
Section 03
Question 1 a. Yes I said it is an experiment because researchers were recording how much alcohol they consumed and found that even among women who consumed as little as 10 grams of alcohol a day, the risk of cancer of the breast, liver and rectum was elevated. b. Yes I will prefer sample survey to those women who have cancer instead to using women volunteer for a study. The variables they measured was how much alcohol they consumed how the body response to alcohol and if they help to get any sickness.
Question 2 a. Observational study because the researchers were observing the players and see if they have been called for fouls more in home games or in away games. b. I would say sample survey, researchers were trying to gain information about the whole school by collecting data from sample students. c. It is an experiment because researchers imposed students to access to audio recordings of course lectures to measure their response and see if it have any change.
Question 3 a. The individual of the data set are the make and model of the cars. b. The variables are the vehicle type, transmission type, number of cylinders, city mpg, and highway mpg. The city mpg and highway mpg take the numerical values, but the number of cylinders takes only the 4, 6, 8 values.
Question 4 a. P1. Increase benefits will lead workers to be more diligent
P2. Workers lack of skills and enthusiasm, products lack of quality and time
P3. Give rewards to employees more enthusiasm and diligent employees b.

H1. 5% increase in benefits will lead 10% decrease on lazy employees
H2. More skilled and enthusiasm workers will improve products quality and time of products can be done
H3. Reward the best employee of the month by a bonus check will lead workers to be more diligent. c. I might face budget limitation, I would face difficulties discovering workers skills, enthusiasm, leading them to be more diligent. The hardest part would be how to measure the best employee on the month to give the reward.

Question 5 a. They will need to tell me their name. Who are they working for and what the survey is about? Time that it will take. Because me as one of the respondents I will need to identify the individual who is doing the poll and the company they worked for, how they will use this information and how much time it will take me before I accept to be interview. b. I think this is required because if anything that I do not like happen and I want to complaint about the way I am treated by the pollster. c. I think it would be better if the respondents do not know about the sponsor as bias can also come from respondents predicting the sponsor’s wants.
Yes, the sponsor should always be announced the poll results when they are public and not before.