In the double exponential smoothing model Ft+k = at + btk, identify the value that signifies the level.
A) at
B) Ft+k
C) bt
D) k
Q. 2When developing a confidence interval estimate, the confidence level is calculated based on the size of the sample and the population standard deviation.
Indicate whether the statement is true or false
Q. 3If a data set has 1,133 sorted values, what value corresponds to the 3rd quartile?
A) The 250th value
B) The 850th value
C) The 760th value
D) The 849th value
Q. 4Slack variables are always nonnegative.
Indicate whether the statement is true or false
Q. 5A professor hands out survey forms during her classes, where the population is all students attending the college. This is an example of:
A) a convenience sample.
B) a simple random sample.
C) a stratified sample.
D) a cluster sample.
Q. 6In a situation where we know the population standard deviation but wish to estimate the population mean using a 90 percent confidence interval, the critical value is z = 1.645.
Indicate whether the statement is true or false
Q. 7Using the given data, calculate the value of mean absolute percentage error.
A) 12.56
B) 10.28
C) 15.03
D) 25.27
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