Question

USA Today conducted a survey asking readers, "What is the most hilarious thing that has ever happened to you en route to or during a business trip? At a recent track event with 22 runners in the U.A.E., Ahmed ran the mile in 5 minutes, 40 seconds. The average time for this event in the U.A.E. is about 5:52, where at this event it was 5 minutes, 45 seconds. Based on this, identify a. What kind of sampling method is this? the statistic the parameter b. Are the results likely to be biased? Explain why or why not.

Answer 1

(1)

(a) This is convenience sampling as the sample has been chosen arbitrarily and only those will answered who felt so that means it can not be considered random sampling.

(b) Yes,This is biased sampling as the sampling is not random and only those person will participate who felt the situation so the answer can be biased.

(2)  The average time for running a mile in the U.A.E. ( entire USE) = 5:52 is parameter.

The statistic is the average time for running a mile in the U.A.E. in the recent track event (only for the sample i.e. sample mean) = 5:45