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6c) Four (4) robots are selected from a large population of robots of which 20% are...
twelve jurors are randomly selected from a population of 4 million residents. Of these four million...
twelve jurors are randomly selected from a population of 4 million residents. Of these four million residents it is known that 47% are of a minority race. Of the 12 jurors selected 2 are minority. if 12 jurors are randomly selected from a population where 47% are minorities what is the probability that two or fewer jurors will be minorities?
Problem 8 A large box of fuses contains 10% defectives. Four fuses are randomly selected from...
Problem 8 A large box of fuses contains 10% defectives. Four fuses are randomly selected from the box. Find: a) Probability that exactly one fuse is defective b) Probability that at least one fuse of the four selected is defective Now suppose these four sampled fuses are shipped to a customer before being tested. Assume the cost of fixing' a shipment with defective fuses is given by C- 3Y2 where Y is the number of defectives in the shipment of...
Suppose that 17 percent of an extremely large population are smokers. Six people are randomly selected....
Suppose that 17 percent of an extremely large population are smokers. Six people are randomly selected. Answer the following questions, rounding your answers to two decimal places. (a) What is the probability that no more than two of these people are smokers? (b) What is the probability that there is at least one smoker in the group of six?
Suppose that a random sample of size 64 is to be selected from a population with...
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5. (Use a table or technology.) (a) What are the mean and standard deviation of the x sampling distribution? Describe the shape of the x sampling distribution. The shape of sampling distribution is-Select- (b) What is the approximate probability that will be within 0.5 of the population mean? (Round your answer to four decimal places.) (c) What is the...
Suppose that a random sample of size 64 is to be selected from a population with...
Suppose that a random sample of size 64 is to be selected from a population with mean 30 and standard deviation 7. (Use a table or technology.) (a) What are the mean and standard deviation of the sampling distribution of x? - 30 0 - 0.875 Describe the shape of the sampling distribution of x. The shape of the sampling distribution of x is approximately normale (b) What is the approximate probability that x will be within 0.5 of the...
In one city, 20% of the population has a college education. Three people are selected at...
In one city, 20% of the population has a college education. Three people are selected at random from the city. Find the probability distribution of X, the number among the three that have a college education. A. Identify then and the p for this distribution. p B. Let the random variable x be the possible number of people selected with a college degree. Develop a binomial distribution by finding P(x) when x = 0, 1, 2, and 3. XP(x) 0...
Random samples of size n = 400 were selected from a binomial population with p =...
Random samples of size n = 400 were selected from a binomial population with p = 0.1. Is it appropriate to use the normal distribution to approximate the sampling distribution of p̂? Use this result to find the probability. (Round your answer to four decimal places.) p̂ < 0.10
c) Smaller than the population mean. d) Cannot be determined from this information 12. of each...
c) Smaller than the population mean. d) Cannot be determined from this information 12. of each sample is determined. As the sample size n becomes increasingly large, what distribution does the distribution approach? All possible samples of size n are selected from a population and the mean a) normal distribution b) binomial distribution c) sampling distribution d) uniform distribution 13. Suppose the mean height of American men (ages 20-29) is 68.2 inches, with standard deviation ?-2.7 inches. If these heights...
Random samples of size n = 80 were selected from a binomial population with p =...
Random samples of size n = 80 were selected from a binomial population with p = 0.2. Use the normal distribution to approximate the following probability. (Round your answer to four decimal places.) P(p̂ > 0.17) =
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5.
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5. (a) What are the mean and standard deviation of the sampling distribution? (b) What is the approximate probability that will be within 0.3 of the population mean u? (Round your answer to four decimal places.) (c) What is the approximate probability that will differ from u by more than 0.7? (Round your answer to four decimal places.)
Problem 8 A large box of fuses contains 10% defectives. Four fuses are randomly selected from the box. Find: a) Probability that exactly one fuse is defective b) Probability that at least one fuse of the four selected is defective Now suppose these four sampled fuses are shipped to a customer before being tested. Assume the cost of fixing' a shipment with defective fuses is given by C- 3Y2 where Y is the number of defectives in the shipment of...
Suppose that a random sample of size 64 is to be selected from a population with mean 40 and standard deviation 5. (Use a table or technology.) (a) What are the mean and standard deviation of the x sampling distribution? Describe the shape of the x sampling distribution. The shape of sampling distribution is-Select- (b) What is the approximate probability that will be within 0.5 of the population mean? (Round your answer to four decimal places.) (c) What is the...
Suppose that a random sample of size 64 is to be selected from a population with mean 30 and standard deviation 7. (Use a table or technology.) (a) What are the mean and standard deviation of the sampling distribution of x? - 30 0 - 0.875 Describe the shape of the sampling distribution of x. The shape of the sampling distribution of x is approximately normale (b) What is the approximate probability that x will be within 0.5 of the...
In one city, 20% of the population has a college education. Three people are selected at random from the city. Find the probability distribution of X, the number among the three that have a college education. A. Identify then and the p for this distribution. p B. Let the random variable x be the possible number of people selected with a college degree. Develop a binomial distribution by finding P(x) when x = 0, 1, 2, and 3. XP(x) 0...
c) Smaller than the population mean. d) Cannot be determined from this information 12. of each sample is determined. As the sample size n becomes increasingly large, what distribution does the distribution approach? All possible samples of size n are selected from a population and the mean a) normal distribution b) binomial distribution c) sampling distribution d) uniform distribution 13. Suppose the mean height of American men (ages 20-29) is 68.2 inches, with standard deviation ?-2.7 inches. If these heights...
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