☑Kizspy.me
(Choose 1 answer)
☐ A
A. 0.0015
☐ C
B. 0.0033
☐ D
C. 0.9985
D. 0.9966
According to a survey, only 15% of customers who visited the website of a major retail store made a
purchase. What is the probability that a random sample of 50 will have at least 30% of customers who will
make a purchase after visiting the website?
Let
P(Z<-0.99)=0.1611, P(Z<2.97) = 0.9985,
P(Z<0.3) 0.6179, P(Z<2.71) = 0.9966.
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