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Sixty percent of the families in a certain community own their own car, thirty percent own their own homes, and twenty percent own both their own home and own car. If a family in the community is randomly chosen, what is the probability that they own their own car or their own home but not both.
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
If a technical breakthrough occurred that raised the profit per unit of X 1 to $3, would this affect the optimal solution?
Determine the strength of the causal relationship between monthly sales and new home construction by using correlation.
Construct a stem and leaf plot of the income. what do you predict about the shape of the population distribution. complete the following sentence. Fifty percent of the data falls below $ ______.
The chi-square goodness of fit is______________a one-tailed test with the rejection region in the right tail.
A survey of the residents of a new subdivision on why they happened to select that area in which to live. You also wish to secure some information about what they like and do not like about life in the subdivision.
For a regional survey of suburban households to obtain data on television viewing habits, a statistical sample of suburban areas is first selected. Within the chosen areas, statistical samples of whole blocks are selected; and within the selected..
If probability of drawing a face card is 0.625. Determine the probability of not drawing a face card.
The estimated salary range is $4,500, the margin of error should be $100 and the desired level of confidence is 95%.
In a certain city, there are 100,000 persons age 18 to 24. A simple random sample of 500 such persons is drawn, of whom 198 turn out to be currently enrolled in college.
Construct a 95% confidence interval on the population mean for the following sample data set:
A sports researcher gave a standard written test of eating habits to 12 randomly selected professionals, four each from baseball, football, and basketball. The results were as follows:
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