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Two prison inmates communicate in binary by tapping on the adjacent wall. Suppose that the probability of receiving a zero given that a zero was sent is 0.98, the probability of receiving a one given that a one was sent is 0.96, and the probability of sending a one is 0.6.
(a) If one is received, what is the probability that a zero was sent?
(b) If a single digit is sent, what is the probability that the opposite digit is received?
(c) If two digits are sent independently, what is the probability that both digits received are the ones that were sent?
he length of time a person spends waiting in a physician's office for an appointment can be a frustrating experience. The results below are the responses of internists from two multispecialty group practices to the following question:
Combine the following observations with the above data: 34, 46, 92, 51, 65, 76, 53, 99, 40, 46. Does the combined data set look normal?
The fleet of yellow fire trucks made 135,035 runs and had 4 accidents. At α = .01, did the yellow fire trucks have a significantly lower accident rate?
What is the point estimate of the population standard deviation?
if the random variable z is the standard normal score and a gt 0 is it true that pz lt -a pz gt a? why or why not?
Five cards are drawn from an ordinary deck without replacement. Find the probability of getting:
You are conducting a study for which it is critical that the findings be representative of the population of interest. Which of the following research methods runs the greatest risk.
Eagle Outfitters is a chain of stores specializing in outdoor apparel and camping gear. It is considering a promotion that involves mailing discount coupons to all its credit card customers.
a survey of 25 randomly selected customers found the ages shown in years. the mean is 32.56 years and the standard
Write a paragraph summarizing the results of the analysis and determine whether the calculated values of chi-square are statistically significant
Calculate the mean, median of the following grade point averages
Political polls typically sample randomly from the U.S population to investigate the percentage of voters who favor some candidate or issue. The number of people polled is usually on the order of 1000.
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