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Question: A convenience store owner hypothesizes that the median number of snow cones he sells per day is 36. A random sample of 20 days yields the following data for the number of cones sold each day. At "alpha" = 0.05, test the owner's hypothesis.
18 43 10 16 22 30 29 32 37 3639 34 39 30 28 30 40 34 39 52
Graph a relative frequency histogram for the 500 measurements summarized in the accompanying relative frequency table.
In which of the following markets do all firms sell the same standardized product?
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?
At a certain university, the average cost of books per student was 400.00 last semester. In a sample of 40 students this semsester, their average cost was 340.00 with a standard deviation of 80.00.
The standard IQ test has a mean of 100 and a standard deviation of 13. We want to be 98% certain that we are within 2 IQ points of the true mean. Determine the required sample size.
Complete the ANOVA summary table and perform post hoc comparisons, if necessary and what conclusions can be drawn from the F-ratio and the post hoc comparisons?
What are the predictor and response variables? Make a scatterplot of the data and find r to see if a linear pattern seems to exist. If it appears to have a linear relationship, find the regression line. Dont forget to state what r is, and interpret..
Test the given claim using the traditional method of hypothesis testing.
Compute the z-score for M=89 for a sample of n=25 scores. Is this sample mean in the middle 95% of the distribution?
What is overall mean and standard deviation of the test scores? Sketch the distribution and show where you are and where your friend is?
Determine critical path and project completion time. Determine the probability that the project will be finished in 70 days or less. Determine the probability that the project will be finished in 80 days or less
Create an example of an application oriented binomial experiment. You are to give the scenario which should include an "n" and "p".
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