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The facts are: A fast food chain claims that a large order of french fries has 540 calories. To test the claim that the true mean is actually higher, a sample of 15 large orders of french fries is taken. The sample mean is x-bar = 560 and the sample standard deviation is s = 21. How would I calculate what a 95% confidence interval is for the mean number of calories for all fries? I believe the mean number of calories for all large orders of fries is 540. What is the correct procedure too follow to calculate the interval?
A research company has designed three different systems to clean up oil spills. The following table contains the results, measured by how much surface area (in square meters) is cleared in 1 hour. The data were found by testing each method in seve..
Determine the probability that person's monthly gasoline (gallon) purchases will be less than 67 gallons.
The relationship between current assets and current liabilities is important in evaluating a company's
What is the present value of an annuity of $6,200 per year, with the first cash flow received three years from today and the last one received 25 years.
the president of a company has a hunch that there is a .80 probability that the company will be successful in marketing
For each of the following, state whether a one-proportion z-test or a two-proportion z-test would be appropriate, and name the populations.
Calculate P(X . What is the probability that X will exceed 0.5? Given that X > 0.5, what is the probability that X will be less than0.75?
at a community college it is known that the grade point average gpa of all students has a distribution which is both
Find the weighted mean of three test scores for a student (85, 90, 75) where the first test counts for 20%, the second test counts for 30%, and the third counts for 50% of the final grade.
a class containing 15 students 5 of them are females. in how many ways can we select a group of 4 male
If five players are randomly selected from the entire population of Division I-A football players, what is the probability that at least 3 of the 5 will graduate?
Provide examples of a different data collection method and a data collection instrument used in managerial research. Why is it important to ensure that these data collection methods and instruments are both reliable and valid?
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