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Given the following data on the number of pints of ice cream sod at a local ice cream store for a 6 period time frame.
Period Demand1 2002 2453 1904 2805 2806 300
a. Compute a 3 period moving average for period 4
b. Compute a 3- period moving average for period 6
c. Compute a 3- period moving average for period 7
d. Compute a 5-period moving average for period 6
e. Compute a 5-period moving average for period 7
Can you determine the number of levels used for each factor? Explain. Describe a treatment for this experiment and determine the number of treatments used.
A researcher claims that the average age of people who buy theatre tickets is 51. A sample of 30 is selected and their ages are recorded as shown below.
Find the Probability and inverse probability for the given Normal distribution.
An electrical firm manufactures light bulbs that have a length of life that is approximately normally distributed. If a sample of 16 bulbs has an average life of 50 hours and the population standard deviation is known to be 10 hours.
In a pilot study, five kids are given several problems of each type to practice (and then tested on three problems), in one of the three Sequences: D-R-T, T-D-R, OR R-T-D.
Compute the population mean, the population median, the population midrange, the population range, the population variance, the population standard deviation, and the population proportion of odd numbers. Verify the following results:
When the non-parametric statistics utilized? Write down an example.
Assuming that a hypothesis test of the claim has been conducted and that the conclusion is failure to reject the null hypothesis, state the conclusion in nontechnical terms.
He argues that the regression effort says people who perform very poorly in their previous job tend to perform well in their next job. Is this what the regression effect says? Explain.
Victor Anderson, the owner of Anderson Belts, Inc., is studying absenteeism among his employees. His workforce is small, consisting of only five employees.
Cheating Gas Pumps When testing gas pumps in Michigan for accuracy, fuel-quality enforcement specialists tested pumps and found that 1299 were not accurate (within 3.3 oz when 5 gal is pumped), and 5686 were accurate.
Test the hypothesis that the annual incomes of Teachers in areas of more than 500,000 are significantly more than those in areas of less than 100,000. Use the 5% level of risk.
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