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Given the following data on the number of pints of ice cream sod at a local ice cream store for a 6 period time frame.
Period Demand1 2002 2453 1904 2805 2806 300
a. Compute a 3 period moving average for period 4
b. Compute a 3- period moving average for period 6
c. Compute a 3- period moving average for period 7
d. Compute a 5-period moving average for period 6
e. Compute a 5-period moving average for period 7
What is the probability of this project being completed earlier than 19 days?
Calculate the correlation and the regression equation and plot the data in the space provided.
The hypothesis is to be tested at the 5% level of significance. The critical value from the table equals:
If the same sample results had been obtained from a random sample of 16 students, could the students' claim be accepted at a lower level of significance?
A single-sample acceptance attributes sampling plan is required to have a producer's risk of 0.06 for an acceptable quality level of 0.5% nonconforming, and a consumer's risk of 0.10 for a rejectable quality level of 5% nonconforming. Use Minitab ..
Choose a variable. Before collecting the data, decide what a likely average might be, then complete the following: Write a brief statement of purpose of the study
A least squares linear trend line is just a simple regression line with the independent variable being time (months or years for example).
The amounts of money requested on home loan applications at Down River Federal Savings follow the normal distribution, with a mean of $70,000 and a standard deviation of $20,000.
The possible responses to the question "How would you rate our quality of service?" with 1=excellent, 2=good, 3=fair, 4=poor, describes what type of variable?
The company statistician has reported the mean number of man-hours lost per month but did not keep a record of the total sum. Should the manager order the study repeated to obtain the desired information? Explain your answer clearly.
Would it be reasonable to conclude that the population distribution is Poisson with a mean of 2.0?
Frequent checks of unfilled orders at end of day reveal that distribution of unfilled orders follows Poisson distribution with mean of two orders. Sketch the histogram representing Poisson probability distribution of unfilled orders.
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