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Suppose that you want to test the claim that the mean weight of male harbor seals is 300 pounds. You collect a sample of 90 seals and find that the mean weight in the sample is 308 pounds.The standard deviation is 23. Using significance level of .01 test the null hypothesis using 5-step procedure.
The number of girls who attend a summer basketball camp has been recorded for the seven years the camp has been offered.
Average length of trout caught in Swanson lake is u=19.For a random sample of 51 fish caught the mean length was xbar=18.5 inches with estimated standard deviation s=3.2 inches.
What proportion of 1040R tax forms will be completed in more than 114 minutes? Round your answer to at least four decimal places.
Using standard methods for linear statistical prediction, find the percent increase in sales revenue that would be expected if the price were lowered by 15%. Find the usual measure of the strength of association between price reduction and sales re..
Brief description of the real-world situation or problem you selected to address, the independent and dependent variables you would study
Write up your results by using scientifically recognized form.
Among 500 freshmen pursuing a business degree at a university, 347 are enrolled in an economics course, 204 are enrolled in a mathematics course, and 160 are enrolled in both an economics and a mathematics course.
Determine the mean and the standard deviation of the following frequency distribution. (Round your answers to 2 decimal places.)
Solve problem graphically1. Describe optimal solution and objective function value in context of the problem.
The Travel Weekly International Air Transport Association survey asked business travelers regarding the purpose for their most recent business trip.
Construct a 95% confidence interval estimate for the proportion of all workers who did not use the Internet within limits. Explain your findings so that your non-quantitative partner will understand them.
You run a two tail t-test. The critical value for this test at the .05 level is a t of 7.82. What value must the obtained t-test statistic be in order to be considered significant at the .05 level?
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