Question

Citing a higher incidence ot ee chone Would you believe the claim? Select a hat apety DA. Yes, since banning distractions for drivers OB. No, since many other factors can tead to aceidents c. Yes, since the goal of the study is clear D. No, since it is not explained how such a ban would be implementedsrsed DE. No, since the relationship between cell phone use and traff F. Yes, since the sample was representative of the population. c fatalites is Identify any potential sources of bias in the following study. From a poll of people who recently bought cold medicine at all stores of a large conciuded that the mean time between colds for all Americans is 5.6 months. What sources of bias, if any, might this study have? A. Participation bias only B. Both selection and participation bias C. Selection bias only D. There is probably no bias in the study.

Answer 1

Participation bias or non response bias occurs when some significant number of people fail to participate in the study. This is not the case here as all people who bought cold medicine might have taken the poll.

There can be selection bias here as the study participants here are the only ones who come to buy medicine from the large drug store. Some sections of the people might be left out. Therefore, this study suffers from only selection bias.

C) is the correct option.