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Survey response rate. Pew Research reported in 2012 that
Chapter , Problem 3.30(choose chapter or problem)
Survey response rate. Pew Research reported in 2012 that the typical response rate to their surveys is only 9%. If for a particular survey 15,000 households are contacted, what is the probability that at least 1,500 will agree to respond?5
Questions & Answers
QUESTION:
Survey response rate. Pew Research reported in 2012 that the typical response rate to their surveys is only 9%. If for a particular survey 15,000 households are contacted, what is the probability that at least 1,500 will agree to respond?5
ANSWER:
Step 1 of 2
We can consider this as a Binomial distribution with,
The number of trials, n = 15000
The number of successes, k = 1500
Probability of success, p = 0.09
We also need to verify that both np and n(1 ? p) are at least 10:
Hence both conditions are satisfied.