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Forecast the number of deliveries using Exponential smoothing constant for different values and compare it.A hospital records the number of floral deliveries its patients receive each day. For a two week period, the records show
15, 27, 26, 24, 18, 21, 26, 19, 15, 28, 25, 26, 17, 23
a. use exponential smoothing with a smoothing constant of .4 to forecast the number of deliveries.
b. repeat using a smoothing constant of .5
c. compare the forecasts using MSE
The upper limit of a 95% confidence interval for the population mean would equal:
Let p represent the proportion of registered voters in the state that would vote for the Republican candidate. The standard error for the proportion of those who phoned in who answered "yes" is
If true explain and if false give an example. a. The significance level of a statistical test is equal to the probability that the null hypothesis is true. b. If the significance level of a test is decreased, the power of the test would be expected t..
Find the standard error of the difference in sample means,
If the mean IQ of all Omega University students was equal to 115, and a small random sample of students was selected from the population whose mean IQ was 120, then this difference of 5 points would equal the:
Let be the average of the pay you receive for the first and second week. Find the sampling distribution
In rectangular coordinate system, determine the distance between the points (-4,1) and (8,6).
Compute a seasonalized or adjusted sales forecast.
Compute average daily rainfall in the week and for weekends. Get the average of weekdays' rainfalls and average of weekend's rainfalls.
At the 5 percent level of significance, can we conclude that the mean weight is greater than 16 ounces? Determine the p- value.
Which of the following Venn diagrams has shaded the event that the contractor wins exactly one of the contracts and evaluate the mean time to complete the entire homework assignment
Calculate the probability that the median of the sample or average medians is:
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