Author Question: The standard error of the population proportion will become larger A) as population proportion ... (Read 168 times)

09madisonrousseau09 · **on:** Jun 24, 2018

The standard error of the population proportion will become larger

A) as population proportion approaches 0.50. B) as the sample size increases.
C) as population proportion approaches 0. D) as population proportion approaches 1.00.

Question 2

A catalog company that receives the majority of its orders by telephone conducted a study to determine how long customers were willing to wait on hold before ordering a product. The length of waiting time was found to be a variable best approximated by an exponential distribution with a mean length of waiting time equal to 3 minutes (i.e. the mean number of calls answered in a minute is 1/3). What proportion of customers having to hold more than 4.5 minutes will hang up before placing an order?

A) 0.48658 B) 0.22313 C) 0.51342 D) 0.77687