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Forecasting Exercise
Year Demand ( in 1000's )
1 132 173 184 215 27
Develop a forecast for year 6, using two-year moving average and trend analysis. Identify which method is most appropriate for this data set
The distribution of 9 ounce bags of a particular bag of potato chips is approximately Normal with a mean of 9.12 ounces and a standard deviation of 0.15 ounces.
This activity is a revision of an activity found in Real Data: A Statistics Workbook Based on Empirical Data by Z. C Holcomb (1997). Published by Pyrczak Publishing.
A student team examined parked cars in four different suburban shopping malls. One hundred vehicles were examined in each location.
For each year, create a bar chart and a pie chart.
what is the post-test probability of disease being present in a patient with a positive test result for test A if a cutoff value of 4.0 mg/ml is chosen?
There are three flight phases. At α = 0.05, is the cockpit noise level independent of flight phase?
Using variables below, (1) mention all research questions that would be replied with a Two Way ANOVA test, (2) make null hypotheses for these questions.
A Manager needs to decide between two machines to put into market following a Weibull distribution. Machine X test unit cost $3000 with beta=3 and theta=500 Machine Y test unit cost $2000 with beta=3 and theta=400
Suppose the investor is to invest a total of $10,000, what is the expected value of perfect information for investor.
Compute the indicated confidence interval for the differenciate in proportions. Suppose that the samples are independent and that they have been randomly selected.
The average cost of a one bedroom apartment in a town is $550 per month. What is the probability of randomly selecting a sample of 50 one bedroom apartments in this town and getting a sample mean of less then $530 if the population standard deviat..
At the .05 level, you are testing whether there is a significant difference in the proportions of college students and similar aged non college students having accidents during the two year period. Is this a 1 or 2 tail test?
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