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What does the standard deviation unit really represent? Is the distinction among various parts of the bell-shaped curve arbitrary or is there certain logical and rational principle involved that creates such distinctive demarcations shown in a chart like this?
Calculate the Pearson correlation for these data also determine whether there is a significant correlation among attitudes for husbands also wives.
Suppose a wildlife service wishes to estimate, with 99% confidence, the mean number of days of hunting per hunter for all licensed hunters in the state during a given season, with a bound on the error of estimation equal to 2 hunting days.
What quantitative method can be applied to help the Department make the decision? Outline how this method can be applied and explain how a qualitative method can also be applied to help the Department make the decision
Find a 95% confidence interval for the population mean concentration of uric acid in this patient's blood. What is the margin of error?
In a normal frequency distribution, 32% of the cases:
Determining probability when guessing answers. Test comprise of multiple- choice questions each having 4 possible answers (a, b, c, d) one of which is right. Suppose that you guess answers to six such questions.
A market research company surveyed consumers to determine their ranked preferences of energy drinks among the brands Monster, Red Bull, and Rockstar.
Find the probability that a randomly selected teacher earns and what sample size is necessary to double the standard error of the mean and what sample size is needed to cut the standard error of the mean in half?
Finding the probability selecting a defective item from a collection of items using tree diagram
At the .10 level of significance, is the coin biased toward heads? Show your decision rule and calculations.
Make three-month and four-month moving averages for this time series. Does the three-month or four month moving average provide the better forecast? Explain.
I performed a linear regression for the Population to the monthly profit, but do not understand how to use the information. And I do not understand the confidence interval estimate; how do I use and decipher the info.
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