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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?
Statistics and Probability, Statistics
A confidence interval for a population mean is to be estimated. The population standard deviation is guessed to be anywhere from 14 to 24. The half-width B desired could be anywhere from 2 to 7. Tabulate the minimum samp ...
"A Financial Planning Licensee striving for excellence in their fiduciary duty has decided to set a maximum limit of gearing for all client financial plans they construct." Comment on the merit of taking such an approach ...
According to the Polk Company, a survey of households using the Internet in buying or leasing cars reported that 81% were seeking information about prices. In addition, 44% were seeking information about products offered ...
Consider the following difference equation and initial condition(s). In each case, verify that the expression given for an (i) is a solution of the equation (ii) satisfies the initial condition(s). (a) an = 2(1/3)n satis ...
A random group of 20 depressive patients has been given the MMPI. Their scores on a depression scale are as follows: 30 45 32 28 33 25 37 32 34 32 26 35 30 34 35 31 36 26 42 39 Construct a frequency distribution. Then ma ...
1. For a normal distribution with μ = 500 and σ = 100, a. What is the percentile rank for X = 550? b. What is the percentile rank for X = 650? c. What is the percentile rank for X = 450? 2. For a normal distribution with ...
Fifty-seven percent of employees make judgements about their co-workers based on the cleanliness of their desk. You randomly select 8 employees and ask them if they judge co-workers based on this criterion. The random va ...
New York graduates tend to leave the state after graduating. A study asked the students of NYU "Are you planning to stay in NY after graduation?" In the sample, only 37% answered yes. The study explained that with a 95% ...
List three ways organizations provide context for their financial ratios, in other words what is the basis of on which they compare their results?
Stocks A, B, and C have expected returns of 12 percent, 12 percent, and 10 percent, respectively, while their standard deviations are 42 percent, 30 percent, and 30 percent, respectively. If you were considering the purc ...
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