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Forecasting:
Recent actual and forecasted data for product XYZ is given in the following table.
Month
Actual Demand
3-month Forecasted Demand
May
35
25
June
31
30
July
48
33
August
41
38
Determine the MSE, MAD, cumulative error and average error.
determine if the improvement is of practical significance one should. Crop researchers plant 100 plots with a new variety of corn. The average yield for these plots is x' = 130 bushels per acre
How strong is the evidence against the company's claim? Based on these data, the P -value of the appropriate test
An experiment was performed to investigate lifetime of a component exposed to high heat. Three different oven types were used at either 550°F or 600°F.
Standard deviations for first- and second-time and confidence interval
There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval for the difference in the proportion of defectives.
A random variable has the density curve as in the graph below. Find The height of the density curve?
We are interested in comparing the proportions of males and females who think earning a large salary is very important to them. I surveyed 200 of each gender and recorded their answers to the question as yes or no.
An experiment was conducted to determine the effects of three different pesticides (P1,P2,P3) on the yield of three different varieties of citrus tree (V1,V2,V3).
Find the relative risk for moderate beer drinkers as compared to nondrinkers, finds the 95% confidence interval
A recent census of a small town in Michigan showed that 60% of the residents are male, 20% have college degrees, and 15% are both male and college graduates.
If a technical breakthrough occurred that raised the profit per unit of X 1 to $3, would this affect the optimal solution?
The chance both flights are full is 0.6. Are the two flights being full independent events and What was the mean ranking for the females in this class
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