suppose that in a certain part of the world, in any 50- year period the probability of a plague is .39, the probabili...
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suppose that in a certain part of the world, in any 50- year period the probability of a plague is .39, the probabili...
Suppose that, in at a certain plant over a 30–day period, the probability of equipment failure...
Suppose that, in at a certain plant over a 30–day period, the probability of equipment failure is 0.24, the probability of an operator error is 0.32, and the probability of both occurring is 0.09. If there is found to be equipment failure, what is the probability of an operator error? Give your answer to three decimal places.
QUESTION 39 Suppose the mean SAT score for a certain year was 1060 with a standard...
QUESTION 39 Suppose the mean SAT score for a certain year was 1060 with a standard deviation of 194. Joe scored a 920 on the SAT. What is his z-score? Be sure to round correctly to the nearest hundredth. A. -0.72 B. 0.70 C. 0.72 D. -0.70 QUESTION 40 Suppose the mean SAT score for a certain year was 1060 with a standard deviation of 194. Emily scored a 1300 on the SAT. Which percentile listed below does Emily fall...
15) Suppose the probability of contracting a certain disease is 1 in 43,093 for a new...
15) Suppose the probability of contracting a certain disease is 1 in 43,093 for a new case in a given year. Approximate the probability that in a town of 2,504 people there will be at least one new case of the disease next year. Express your answer as a percentage rounded to the nearest hundredth. 16) A statistics student plans to use a TI-84 Plus calculator on her final exam. From past experience, she estimates there is a 91% probability...
(15%) Suppose that a certain part for PCB assembly is received in large quantities. A single samp...
(15%) Suppose that a certain part for PCB assembly is received in large quantities. A single sampling plan with n-50 and c-2 is currently in use. 4" a. Describe type I error (a) and type II error (B) in acceptance b. What is the probability that an incoming lot will be accepted if c. What's the difference between an accepted lot and a rejected lot if sampling. the lot fraction nonconforming is fixed at 2%? at 5%? they are from...
During any period, a potential customer arrives at a certain facility with probability 1/2. If there...
During any period, a potential customer arrives at a certain facility with probability 1/2. If there are already two people at the facility (including the one being served), the potential customer leaves the facility immediately and never returns. However, if there are one or fewer people, he enters the facility and becomes an actual customer. The manager of the facility has two types of service rates available. If he uses his “slow” service rate at a cost of $3 during...
Part C. If 50 progeny are selected at random,A certain genetic trait affects, independently, 30% of...
Part C. If 50 progeny are selected at random,A certain genetic trait affects, independently, 30% of progeny. Part Ci. …What is the approximate probability that less than 15 have the genetic trait?
The probability that a certain hockey team will win any given game is 0.3859 based on...
The probability that a certain hockey team will win any given game is 0.3859 based on their 13 year win history of 399 wins out of 1034 games played (as of a certain date). Their schedule for November contains 12 games. Let X = number of games won in November. What is the probability that the hockey team wins 4 games in November? (Round your answer to four decimal places.)
The probability that a part produced by a certain factory's assembly line will be defective is...
The probability that a part produced by a certain factory's assembly line will be defective is 0.025. Suppose a sample of 130 parts is taken. Find the following probabilities by using the normal curve approximation to the binomial distribution. Use the table of areas under the standard normal curve given below. The probability that exactly 2 parts will be defective is ____. (Round to four decimal places as needed.) The probability that no parts will be defective is _____. (Round...
Suppose people are born in any of the twelve months of the year with equal probability....
Suppose people are born in any of the twelve months of the year with equal probability. What is the probability that at least two of the people in a group of n people are born in the same month? What is the smallest value of n for which this is more than .5?
Suppose that the probability that a certain experiment will be successful is 0.4, and let X...
Suppose that the probability that a certain experiment will be successful is 0.4, and let X denote the number of successes that are obtained in 15 independent trials of the experiment. A. What is the probability that there will be between 6 and 9 successes? B. What is the expected number of successes? C. What is the variance? D. Suppose the scientists decide to re-run the experiment 250 times. What is the probability that the number of success will be...
(15%) Suppose that a certain part for PCB assembly is received in large quantities. A single sampling plan with n-50 and c-2 is currently in use. 4" a. Describe type I error (a) and type II error (B) in acceptance b. What is the probability that an incoming lot will be accepted if c. What's the difference between an accepted lot and a rejected lot if sampling. the lot fraction nonconforming is fixed at 2%? at 5%? they are from...
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