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In a class of 40, 16 driver a car made outside the United States. What is the confidence interval for the total population of students at the 95% level?
construct a 95% confidence interval for the weekly average expenditure on fast food for adults 24 years of age and under. Assume fast food weekly expenditures are normally distributed.
ABC Auto Insurance classifies drivers as good, medium, or poor risks. Drivers who apply to them for insurance fall into these three groups in the proportions: 30 percent, 50 percent, and 20 percent, respectively.
A population has a mean of 53 and a standard deviation of 21. A sample of 49 observations will be taken what is the probability that the sample mean will be greater than 57.95?
Finding the probability of a pointer to land in a color among given three colors.
A producer of pleasure boats wants to maximize revenue during the next month. Two types of boats are sold, x1 and x2. Type x1 sells for $40,000 and type x2 sells for $30,000.
Explain these results to a person who understands the t test for a single sample but knows nothing about the t test for independent means.
Explain the applications of statistics in your own field (Business Administration/Accounting) - Construct a stem and leaf display.
The p-value for a test statistic is .085, what is the minimum level of significance required to reject the null hypothesis?
As a result of an increase in demand for a town's parking facilities, the owners of a car park are reviewing their business operations. A decision has to be made to choose one of the following options:
Test the teachers hypothesis that there is a significant difference between the pre and post tests.
What does confidence interval tell you? What does it mean? What 2 things can a researcher do to decrease width of a confidence interval? What are the effects?
Creek Ratz is a very popular restaurant located along the coast of northern Florida. They serve a variety of steak and seafood dinners. During the summer beach season, they do not take reservations or accept a call seating.
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