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A graduating student keeps applying for jobs until she gets an offer. The probability of getting an offer at any trial is 0.35.
a. What is the expected number of applications? What is the variance?
b. If she has enough time to complete at most four applications, how confi- dent can she be of getting an offer within the available time?
c. If she wants to be at least 95% confident of getting an offer, how many applications should she prepare?
d. Suppose she has time for at most four applications. For what minimum value of p can she have 95% confidence of getting an offer within the available time?
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1. Allen Machines specializes in developing weed-harvesting equipment that is used to clear small lakes of weeds. Allen Machines is contemplating the construction of a machine that would harvest weeds on narrow rivers and waterways. The activ..
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The monthly income of residents of Dayton is normally distributed with a mean of $3000 and a standard deviation of $500.
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According to an article, 19% of the entire US population have high-speed access to the Internet. Random samples of size 200 are selected from the US population.
Find the probability that Clair will win the third game in the next series of games palyed against Helen.
Check the assumptions and conditions for inference on proportions. Find a 95% confidence interval for the true proportion of companies that provide health insurance benefits to all their employees.
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