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Carpet City wants to develop a means to forecast its carpet sales. The store manager believes to the store's sales are directly related to the number of new housing starts in town. The manager gathered data from county records on monthly house construction permits and from store record on monthly sales. These data are as follows:
Monthly Carpet
Monthly Construction
Sales (1,000 yd.)
Permits
5
21
10
35
4
3
12
8
16
2
9
41
11
15
18
14
26
Develop a linear regression model for these data and forecast carpet sales if 30 construction permits for new homes are filed.
Utilizing the chart parameters developed above to define the control charts for future candy bar production, Compute the appropriate plotting points from the data.
Would the null hypothesis be accepted or rejected in this case?
Determine the mean for list of numbers. 6, 5, 9, 4, 14, 9 (Round to the nearest tenth)
A manager of a large department store with three floors reports that the time a customer on the second floor must wait for an elevator has a uniform distribution ranging from 0 to 16 minutes. It takes the elevator 1 minute to go from floor to floo..
The number of degrees of freedom corresponding to between treatments is:
Test hypothesis that calories of two populations are equal. Illustrate all steps of the hypothesis testing process. Points will be deducted for missing parts.
Following sample data shows the weekly closing price of ABC stock. Compute the sample mean and variance from this data set.
Confirm that these statements are accurate by finding the geometric mean rate of increase.
where the deviations εi are assumed to be independent and Normally distributed with mean 0 and standard deviation σ. This model was fit to the data using the method of least squares. The following results were obtained from statistical software.
Conclude the finite population, correction factor.With the population size of 1,000 and a planned sample size of 200, what is the finite population, correction.
Test hypothesis that mean weight of 2 sheets are equal against alternative that they are not(suppose equal variances). Use α=0.05 and suppose equal variances. Determine the P value.
A loan application is received this morning. What is the probability that:
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