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You are told that the population of the scores of IQ test takers is normally distributed, has a population mean of 100 and a standard deviation of 10. You get a sample of 100 takers and find out tha
The probability of getting a promotion and a raise is 0.35. (Use letter P to denote promotion and letter R to denote raise.)
How many possible selections consisting of 2 project managers, 2 legal advisors, 4 computer scientists and 3 systems engineers can be selected if the company can pick from 4 project managers, 7 leg
a) What is the name of the counting rule used to find all the possible outcomes?
What is the name of the counting rule used to find all the possible outcomes?
There are two major tests of readiness for college: the SAT and the ACT. While ACT are reported on a scale from 1 to 36, SAT scores until recently was reported on a scale from 400 to 1600. The score
The scale of scores on the WAIS are approximately Normal with mean 100 and standard deviation 15.
Suppose that the weight of navel oranges is normally distributed with mean µ = 8 ounces, and standard deviation σ= 1.5 ounces. We can write X ~ N(8, 1.5). Answer the following questions
Compute descriptive statistics for each stock and the S&P 500. Comment on your results. Which stocks are the most volatile?
If an analysis of variance is used for the following data, what would be the effect of changing the value of M1 to 20?
The average 1-ounce chocolate chip cookie contains 110 calories. A random sample of 15 different brands of 1-ounce chocolate chip cookies results in the following calorie amounts. At a=0.01 level, i
Write up the summary of his results and his conclusion regarding his hypothesis. What observations would you make from the findings of these two studies?
Assuming that all interactions are potentially important, do a complete analysis of the data. Use P-values in your conclusion.
More specifically, they would like to minimize the sum of the weighted time in queue as the metric for allocation, wherein the size of the precincts are used as weights.
Assuming that the previous traffic of SHC customers now flows to the LHS location (with the same coefficient of variation), and that SHC's personnel also joins LHS what is new average wait time?
Gotham City wants to minimize the total distance cars must travel to respond to the three police calls. Use the Hungarian method to determine which car should respond to which call.
Suppose that the disabled citizens are prioritized over the others. If the percentage of the disabled voters in this precinct is 5% of the total number of voters, how long do the citizens who are no
If the average time a voter spends in the voting booth increases to 4 minutes, what would be the utilization rate of a stable queuing system with the minimum number of voting machines?
What is the variance in the time between calls? What is the probability that the time between calls exceeds the mean?
A researcher conducted an experiment on the effects of a new multivitamin on energy level, with a control group (received nothing), a placebo group, and an experimental group
For the population of women whose mothers did not take the drug DES during pregnancy, what is the estimate of the number of women out of 1000 who would be expected to have tissue abnormalities.
The project hoped to show that right-handed people find right-hand threads easier to use. Do an analysis that leads to a conclusion about this issue.
Calculate the sample mean and standard deviationof height. Construct a stem-and-leaf diagram for the height data and comment on any important features that you notice.
Mutual funds often compare their performance with a benchmark provided by an "index" that describes the performance of the class of assets in which the fund invests.
The probability of dancing at least once that year was 0.077. Why is it not correct to conclude that the probability of flying a kite or dancing was 0.100?