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A list of ten employee salaries has a mean of $80,000, a median of $52,000 and a standard deviation of $24,000. The largest salary on the list is $100,000 and is accidentally changed to $1,000,000. What is the new standard deviation?
If the basket ball player is a 74% free throw shooter, then, on average, how many free throws will he or she make in a game with eight free throw attempts?
Given the following raw scores, calculate the following values: Range, Variance and Standard Deviation, show your calculations: Scores: 9, 7, 8, 4, 8, 8,7, 8, 9, 6, 3
Data on distribution of cost for building effort, design work and testing effort.
Shown below is computer ouput for a regression analysis relating Y (demand in units) and X (unit price).
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
You are trying to set up a portfolio that consists of a corporate bond fund and a common stock fund. the following information about the annual return (per $1,000)of each of these investments under different economic condition is available
A random sample of n=31 households is asked the number of TV sets in the household. The responses are-What is the mean number of TVs?
What are the assumptions and requirements for an LP model to be formulated and used? Under what conditions will an LP problem: be unbounded? be infeasible? have more than one optimal solution?
Find historical information on the statisticians who developed statistical tests, such as the normal distribution, Student t distribution, Chi-Square distribution
Average time it takes males to complete a baccalaureate degree in the California public university system. Using the summary data below from the two samples, compute the value of the test statistic t*.
One of the children, though, fails to solve the problem so the researcher has an undetermined score. What is the best measure of central tendency for these data?
A Correlation matrix (correlation, coefficients and probability level under the hypothesis rho= 0) for a company's sales force (age, years of service, and current sales) is given below. Comment.
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