Question

According to the U.S. Bureau of Labor Statistics, the response rate to the 2017 Consumer Expenditure Quarterly Survey (CEQ) was 60.9 percent. Let’s assume this figure will hold true for 2020 as well. Given the fact and the assumption, what is a close approximation to the probability that at least 7,000 out of 11,000 households contacted will respond to the 2020 CEQ?

(a) 0.454

(b) 0.115

(c) 0

Answer #1

Let X denotes the number of households contacted will respond to the 2020 CEQ out of 11000 selected households.

X ~ Binomial(n = 11000, p = 0.609)

ans-> c) 0

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