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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.
MATH1550H: Assignment: Question: what is the least number of applicants that should be interviewed so as to have at least 50% chance of finding one such secretary?
The random variable X has which of the following probability distributions and What is the probability that no student wins
Describe the sampling distribution of the sample proportion
These can have a large impact on tenure and promotion decisions at many institutions. One particular instructor had ratings in 3 courses in one semester as given by the table below for the statement "The instructor is an excellent teacher.
This model is fit to the data using the method of least squares using statistical software, and the following parameter estimates and their standard errors are obtained.
What is the probability that the sum of their scores exceeds 1200 and probability that the average of the scores of all 400 student
Assuming the nurses surveyed were a simple random sample from the population of all nurses in the United States, find the appropriate null hypothesis for these data
Analysis of data sets assignment
Drug sniffing dogs must be 95% accurate. A new dog is being tested and is right in 46 of 50 trials. Find a 95% confidence interval for the proportion of times the dog will be correct.
The Minitab output for the Tukey Least Significant Difference multiple comparisons is below. Which means are different and similar
Which of the following assumptions for inference about a proportion using a confidence interval are violated,
We are establishing a quality control program for a process and need to establish the mean and standard deviation for the process. The first 10 batches had samples of size 5 taken.
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