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The ophthalmologist reviews fund us photographs 30 patients wtth macular degeneration both before and 3 month after receiving the laser treatment. To assess efficacy, of treatment, each patient is rated as enhanced, remained same, or declined.
If, 20 patients improved, 7 declined, and 3 remained same, assess whether or not patients undergoing this treatment are illustrating significant change from baseline to 3 months afterward. Report a p-value.
A silver dollar is flipped twice. Calculate the probability of each of the following occurring:
Developing a linear programming problem using Commuter Bus scheduling to minimize the total cost.
Calculate the 95% confidence interval for the proportion of students with at least one injury for each of the two subpopulation
Can we conclude that the mean time for a game is less than 3.50 hours? Use the .05 significance level.
A university club consists of 4 men and 6 women. Two members are chosen at random without replacement. Let X = 0 if first person chosen is male, 1 if first person chosen is female. Y = 0 if second person chosen is male, 1 if second person chosen i..
Test the proportions of yellow fire trucks have a significantly lower accident rate.
With the test statistic you chose, work out the problem with solution using .05 level of significance if it applies.
If we repeated this procedure many, many times, only 5 percent of the 95 percent confidence intervals would fail to include the mean Math SAT score of the population of all students at this college.
Determine the regression equation, letting the first variable be the independent (x) variable. Find the indicated predicted values.
When estimating a population mean with a confidence interval estimate, then E is:
how many individuals will I need to sample if I want a 95% margin of error to be no more than 3%, I want to know if the results are significant at = 10%. With the information given.
Can you think of an example where regression analysis can be used? How is regression analysis being used in a retail environment, or how should it be used?
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