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Forecast using three day weighted moving average.
1) What is the formula for r2?
2) Daily demand for newspapers for the last 10 days has been as follows: 12,13,16,15,12,18,14,12,13,15 (listed from oldest to most recent). Forecast sales for the next day using a three-day weighted moving average where the weights are 3,1, and 1 ( the highest weight is for the most recent number).
a. 12.8b. 13.0c. 70.0d. 14.0e. none of these
Test hypothesis that annual incomes of corporate trainers in areas of more than 500,000 are considerably more than those in areas of less than 100,000. Make use of the 5% level of risk.
Can we conclude there is a difference in mean number of surgeries performed by hospital or by day of week?
At the .01 significance level, can we conclude that the 30-yeer mortgage rate for small banks is less than 6 percent? Estimate the p -value.
Determine whether the method of delivering teaching influences adherence with antiretroviral therapy.
You play a game with two possible outcomes. Outcome A has probability 0.4 and outcome B has probability 0.6. When B occurs you win $2.00; otherwise, you lose $1.00. What is your expected value for this game?
Sales manager wishes to award sales representatives who earn the largest commissions a bonus of= $1,000 .He can award bonus to 20% of representatives. Determine cutoff point between those who earn bonus and those who don't?
Determine a 99% confidence interval for mean pH in rainfall. How would you distinguish interval?
Answer the following three questions based on what you know about statistics now.
Utilizing form of Regression method which would give you highest performing model to forecast Sales. Utilizing your model forecast the sales
The following estimated regression model was developed relating yearly income (Y in $1,000s) of 30 individuals with their age (X 1 ) and their gender (X 2 ) (0 if male and 1 if female).
Construct a 95 percent confidence interval for the population mean. Is it reasonable that the population mean is 28 weeks? Justify your answer.
If p denotes the p -value of the corresponding hypothesis test, which of the following is true?
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