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Far West University offers both day and evening classes in business administration. One question in a survey of the students inquires how they perceive the prestige associated with certain careers. Each student was asked to rank the careers from 1 to 8, with 1 having the most prestige and 8 the least prestige. the results were as follows:
Career Ranking Rankingby Day by EveningStudents StudentsAccountant 6 3Computer Programmer 7 2Branch Bank Manager 2 6Hospital Administrator 5 4Statistician 1 7Marketing Researcher 4 8Stock Ananlyst 3 5Production Manager 8 1
Find Spearman's Coefficient of Rank Correlation.
Provide an example of three events that would be mutually exclusive. Are these events also exhaustive? Then, give an example of three events that would be exhaustive. Are these exhaustive events also mutually exclusive?
What test can be performed to compare the percentage of participants who developed abnormal triglyceride levels between the vitamin A and the trace group? Report a two-tailed p value.
Calculate probability that the sample would have a mean:
If life of wild pheasants follows a normal distribution with a mean of 9 months and a variance of 9, what percent of the population will be less than 11 months of age.
Consider a hypothesis test that uses a 0.05 significance level to test the claim that the mean body tem of the population is less than 98.6
Compute mean absolute percentage error (MAPE) of the forecasts.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
Pick a random sample of 50 homes from the enclosed 90 cases. Double the asking price and selling price and use this data to develop three predictive models:
Suppose the sample variance for 30 parts turns out to be s 2 = .0005. Use α = .05 to test whether the population variance specification is being violated.
How much would ING be willing to pay if the General Counsel could arrange for an absolutely reliable mock trial?
Compute mean, standard deviation, coefficient of variation and 5 key percentiles for these data.
Is there a difference in the mean allowances nationally and the mean allowances in northwestern Ohio for nine-year-olds?
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