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Sales of stoves have been going well for the Good-Value Department Store. These sales for the past five months have been 15 18 12 17 13. Use the following methods to obtain a forecast of sales for the next month. (Use hand calculations rather than an Excel template)
(a) The last-value method.
(b) The averaging method.
(c) The moving-average method with 3 months.
(d) If you feel that the conditions affecting sales next month will be the same as in the last five months, which of these methods do you prefer for obtaining the forecast? Why?
Assume salaries are normally distributed with a standard deviation of $4,500. What is the probability of a new graduate receiving a salary between $45,000.
americans have become increasingly concerned about the rising cost of medicare. in 1990 the average annual medicare
1. the diameter of bearing shafts that are manufactured in your factory follow a normal distribution with a mean of 1
This process occurs twenty times, so that twenty spheres have been placed in bins. What is the expected number of empty bins at the end?
question an instructor graded a large number of midterm exams and she considers that the test scores are normally
The data below show the number of registered automatic weapons, in thousands, and the murder rate, in murders per 100,000, for eight randomly selected states. a. Determine the correlation coefficient between the number of automatic weapons and the ..
Given that the sample mean is x¯=93.81, and the sample standard deviation is s=4.65, determine if there are any outliers. (We will define an outlier to be any data value outside of the x¯+_2s range.)
What are the requirements for applying the hypothesis test for the difference in two population proportions? What are the calculations (computations)?
hamada equation cyclone software co. is trying to establish its optimal capital structure. its current capital
65% were not interested in returning to work. Find the 95% confidence interval of the true proportion of workers who do not wish to return to work.
the kirschner company has a contract to produce garden hoses for a customer. kirschner has 5 different machines that
______1. A motorist claims that the Fargo Police issue an average of 60 speeding tickets per day. A random sample of 100 days showed an average of 65 tickets issued with a standard deviation of 10. Which test should be used?
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