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The following salary figures have been reported for the mayor, police chief, and fire chief for a sample of U.S. cities.
Assuming these are a random sample of major cities in the United States, and using the 0.10 level of significance, can we conclude that the median salaries for these positions of responsibility could be the same?
Using the appropriate statistical table, what is the most accurate statement that can be made about the p-value for the test?
I believe this can be done by plotting out every 3 years average number of people working past 65 since 1997 until now and then making a predictability study as to number of people who will be working over the age of 65 in 2012.
Your fixed costs are presently $500,000 with a variable cost per unit of $25 per unit and a sales price of $43 Your options are: Increase your fixed costs by $50,000 which will decrease variable costs by $8 per unit.
Find the expected profit for the insurance company from the policy that I buy for a given year (the mean profit for mine and similar policies sold in a given year)
Is this a one- or two-tailed test and conduct all 6 steps of the appropriate statistic. Be sure to label all six steps.
Suppose investigators are interested in a population of patients who have been recently diagnosed with a particular kind of colon cancer (nonpolypoid colorectal neoplasm).
Get a copy of the current Handbook of United States Coins: Official Blue Book of United States Coins, and graph the distribution of the number of pennies minted in each year. What are the interesting features of this distribution?
Calculate the among groups degrees of freedom, determine if the mean ratios for the four neighborhoods are the same?
At a fast food resturant, the expected number of customers who will spend atleast $10 during lunch period from 12:00 to 2:00 is 221 and the variance is 33.15. Assume this is a binomial model.
Research your state's criminal procedures and choose a crime to review. (My state is Pennsylvania). Locate a state that has a variance in their procedures for the same crime. (Any State).
Find the mean time that the toll collector will require to serve cars that arrive in a one-minute interval.- Find the PDF of the time that the toll collector will require to serve cars that arrive in a one-minute interval.
Upon completing the study, he finds the sample proportion to be 0.32. Is the maximum likely error greater than, equal to, or less than that originally specified? Explain.
Construct the ANOVA table including the partition of the treatment sum of squares into main effects and interaction components b) Is there any evidence of interaction?
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