Author Question: Based on 9000 responses from 26,500 questionnaires sent to all its members, a major medical ... (Read 22 times)

michelleunicorn · **on:** Jul 24, 2018

Based on 9000 responses from 26,500 questionnaires sent to all its members, a major medical association estimated that the annual salary of its members was 99,000 per year. What sampling technique was used?

A) simple random
B) stratified
C) cluster
D) convenience
E) systematic

Question 2

A help desk receives an average of four calls per hour on its toll-free number. For any given hour, find the probability that it will receive exactly six calls. Use the Poisson distribution.

A) 0.1042 B) 0.0141 C) 725.7202 D) 0.0330