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A new sports car model has defective brakes 15 percent of the time and a defective steering mechanism 5 percent of the time. Let's assume (and hope) that these problems occur independently. If one or the other of these problems is present, the car is called a "lemon." If both of these problems are present, the car is a "hazard." Your instructor pur- chased one of these cars yesterday. What is the probability it is:
a. A lemon?
b. A hazard?
The management of White Industries is considering a new method of assembling its golf cart. The present method requires 42.3 minutes, on the average, to assemble a cart.
consider the population 1 2 5 6 10 12.a find the sampling distribution of the medians for samples of size 3 without
based on the following information compute population mean show your
Calculate the test statistic for the claim in, using the following information. Sample information: A random sample of 40 repairs has a sample mean price of $132.09 and a sample standard deviation of $13.58.
the volumes of soda in quart soda bottles are normally distributed with a mean of 32 oz. and a standard deviation of
phone calls arrive at the rate of 9 per 15 minutes. compute the following probability by using poisson distribution no
An airline tracks data on its flight arrivals. Over the past six months, 65 flights on one route arrived early, 273 arrived on time, 218 were late, and 44 were cancelled.
An experimental bumper was designed to reduce damage in low-speed collisions. This bumper was installed on an experimental group of vans in a large fleet, but not on a control group.
let x have the probability density functionfx2x 0 lt x lt 1 and 0 otherwisecompute the probability that x is at least
Create a frequency table for the total number of people that prefer each type of music:
Find the sample mean and sample standard deviation of the amount citizens spend per year. When finding a confidence interval for the true mean spent of ALL citizens, should we use a z-score or a t-score? Why?
devices are made up of five independent components. a given device operates if at least four of its five components are
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