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In the population survey of patients in a rehabilitation hospital, the mean lengthof stay in teh hospital was 12.0 weeks with the standard deviant of 1.0 week. Out of 100 patients, how many wouldyou expect to stay longer than 13 weeks?
Statistics and Probability, Statistics
Question: In one law school class the entering students averaged 700 on the LSAT test with a standard de-viation of 40. Assuming the distribution of test scores was normal, what fraction of the class scored above 750? Th ...
Michael invested $1,000 in large U.S. stocks at the beginning of 2012. This investment earned 17.90 percent in 2012, 32.00 percent in 2013, 13.50 percent in 2014, and 3.00 percent in 2015. What return did he earn in the ...
1) It appears that new car purchases have peaked in 2018 vs. used car purchases. The following probability distribution table shows the random variable x, where x is the number of new cars purchased by household during t ...
The diameter of Ping Pong balls manufactured at a large factory are approximately normally distributed with a mean diameter of 1.30 inches and a standard deviation of .04 inches. Use Excel to calculate the probability of ...
Define and discuss the following business valuation process: a. Basic Framework b. Book Value Approach c. Market Value of Traded Securities Approach d. Market Multiple Approach e. Discounted Cash Flow Approach . details ...
We have a normal distribution with a mean of 71 and a standard deviation of 11 What is the Z value of the value 62? Round to three decimal digits. show workings please
What is the appropriate statistical analysis to use: t-test for two independent samples, t-test for dependent samples, ANOVA, or chi-square test of independence? Please identify and explain why it is appropriate. (a) A s ...
?A sample of 100 people is classified by gender (male/female) and by whether they are registered voters. The sample consists of 80 females and 20 males, and has a total of 60 registered voters. If these data are used for ...
An important part of the customer service responsibilities of a cable company relates to the speed with which trouble in service can be repaired. Historically, the data show that the likelihood is 0.75 that troubles in a ...
The risk-free rate of return is 5.2 percent and the market risk premium is 8.4 percent. What is the expected rate of return on a stock with a beta of 1.34?
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Why might a bank avoid the use of interest rate swaps, even when the institution is exposed to significant interest rate
Describe the difference between zero coupon bonds and coupon bonds. Under what conditions will a coupon bond sell at a p
Compute the present value of an annuity of $ 880 per year for 16 years, given a discount rate of 6 percent per annum. As
Compute the present value of an $1,150 payment made in ten years when the discount rate is 12 percent. (Do not round int
Compute the present value of an annuity of $ 699 per year for 19 years, given a discount rate of 6 percent per annum. As