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11) The time taken to assemble a car in a certain plant is a random variable having a normaldistribution of 20 hours and a standard deviation of 2 hours. What is the probability that a car canbe assembled at this plant in a period of time:a. less than 19.5 hours?b. between 20 and 22 hours?
suppose that the weights of cinder blocks at a local construction yard follow a normal distribution with mean of 20 kg
four different kinds of radar systems designed to detect or monitor the airspace around a major airport for high flying
The mean serum cholesterol level of 25 men ages 65-74 is 231, with a sample standard deviation of 50. For 25 women of the same age, the mean serum cholesterol level is 255 with a standard deviation of 49. Are the average serum cholesterol levels stat..
What are the strengths and weaknesses of nonparametric tests? Can the outcomes of the nonparametric tests be generalized to populations?
An urn contains 8 balls identical in every respect except color. There are 4 blue balls, 3 red balls, and 1 white ball.
Define, describe and provide an example of the Komologrov-Smirnov distribution. Use MS-Excel (if possible) to solve this problem, also Show all your work in obtaining the answer.
Out of a random sample 167 students pass an exam out of the 300. how do you calculate an exact 99% confidence interval for the proportion of sudents who passed the exam?
when a survey calls residential telephone numbers at random only 36 of the calls reach a live person. you watch the
The reader should refer to the examples in each chapter for details on how to implement these in actual practice using JMP. Was the design a CRD?
Given that the test has a mean of 1000 and a standard deviation of 200 what is the lowest possible score needed for acceptance?
What is the probability that the number of tails is between 87 and 100 inclusive. round the final answer to 4 decimal places.
Find the probability that the time taken for a randomly chosen customer to be dealt with by a cashier is more than 180s.
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