Question

Question 13 1 pts A telemarketing firm in Miami uses a device that dials residential telephone numbers in the city at random. Of the first 220 numbers dialed, 49% were unlisted. This is not surprising because 47% of all Miami residential phones are unlisted. None of the given statements is correct Both 47% and 49% - are parameters Both 47% and 49% - are statistics 47% - statistic, and 49% - parameter Not enough information to answer the question O 47% - parameter, and 49% - statistic

Answer 1

47% of all Miami residential phones are unlisted. It is population parameter i.e population proportion is 0.47.

Therefore 47% is parameter.

While 220 numbers are dialed, 49% were unlisted that is sample Statistic is given. Sample proportion is 0.49 ( which is Statistics)

Therefore 49% is Statistic.

And.:- 47% - parameter, and 49% - Statistic