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The following is a list of P/E ratios (current stock price divided by company's earnings per share) for 20 companies.57, 53, 50, 46, 42, 35, 31, 56, 52, 49, 45, 41, 51, 51, 48, 48, 44, 44, 44, 40
Draw the histogram for these data using an initial class boundary of 30.5 and a class width of 6. Note that you can add or remove classes from the figure. Label each class with its endpoints.
Using the data for Problem 08.04, create the project schedule in MS Project. Be sure to use both the predecessor relationships and the resource assignments.
Assume that the significance level is a= 0.1. Use the given information to find the p-value and the critical value (s). With H1: p = with line through it 1/2 the test statistic is z= - 1.35
Suppose you sample one value from a uniform distribution with a = 0 and b = 10. What is the probability that the value will be between 5 and 7?
What is the decision regarding the null hypothesis (is there a difference in the mean numbers of cameras sold at the three department store chains)?
a random vector x y has the joint density function fx y 6xy2 0 x 1 0 y 1 0 otherwise. find fxx and fy y. are x and y
The position of an aircraft relative to an observer on the ground is estimated by measuring its distance r from the observer and the angle ? that the line.
Assume the population standard deviation is 0.143 ppm of mercury. What sample size is needed?
a sanitation department is interested in estimating the mean amount of garbage per bin for all bins in the city. in a
About 72% of dog owners buy holiday presents for their dogs. Suppose n = 4 dog owners are randomly selected. Find the probability that three or more buy.
Write out the goals for a public health or medical study that you would like to do. What type of study will you use?
in a survey of 1430 undergraduate students 1087 reported that they had one or more credit cards.a. provide a 90
A manufacturer uses a new production method to produce steel rods. A random sample of 17 steel rods resulted in lengths with a standard deviation of 21.1cm.
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