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According to the College Board's report, the average tuition and fees at four year private colleges and universities in the United States was $18,273 for the academic year 2002 - 2003 and the standard deviation was $2100. For a random sample of 100 four year private U.S. colleges, answer the following:
a. What is the mean of the sampling distribution?
b. What is the standard deviation of the sampling distribution?
c. What is the probability that the mean tuition and fees of the sample is greater than $20,000?
d. What is the probability that the mean tuition and fees of the sample is less than $16,000?
e. What is the probability that the mean tuition and fees of the sample is within $550 of the population mean?
At the 0.05 level of significance, is there evidence to suggest that the population mean waiting time to check out is less than 10.73 minutes?
How can caffeine cause a muscle fiber to contract and generate force, but without generating an end plate potential or action potential of the membrane?
Analyze the pros and cons of cash, stock, and combined stock/cash acquisitions and propose the method that minimizes taxes. Support your proposal with examples.
The branch manager of a pet supply store wants to study characteristics of customers of his store. In particular, he decides to focus on two variables
The data is shown on the table. Is there a difference in mean SBP between treatments? Run the appropriate test at α= 0.05
Explain the importance of random sampling. What problems/limitations could prevent a truly random sampling and how can they be prevented?
What do you think would happen to reaction rate in the tube incubated in ice if this tube, with enzyme and substrate already mixed, were placed in the 37 degrees C water bath?
Suppose, for the moment, which neither store pays sales commissions. Parkleigh offers an hourly wage plus the employee discount. Kaufmann's offers only an hourly wage. Do you expect Kaufmann's hourly wage to be higher or lower than Parkleigh's.
In 2005 she paid $10,000 to add a room to the house. In 2007 she paid $625 to have the house painted and $800 for built-in bookshelves. As of January 1 of the current year, she has reduced the $48,000 mortgage to $44,300. What is her basis for the..
Conclusion must bring together all ideas about aliens you have developed in paper and explain possible significance of "alien" as element of science fiction.
Either no change to the Objective function or a raise in the value of the objective function depends on the constraint.
Equation of the regression line - Evaluate the equation of the regression line and Find y' when x=47 years.
What is the value of the test statistic? (Negative amount should be indicated by a minus sign. Round your answer to 2 decimal places.)
Let's play a game. An urn contains five red, four green and one gold ball other than color, the balls are identical. You are blindfolded and allowed to pick a ball from the urn. Red pays $5, green pays $10 and gold pays $50.
Is your sample of MSU students significantly different from the population of MSU students in terms of the number of classes they take per semester (use alpha level .05)? To answer this question, follow all of your steps for hypothesis testing.
The Minneapolis Tribune ran an article on gender differences in shopping behavior. When 400 women were asked to respond to the question "Where I shop is influenced by which store has a greater variety," 60% answered "Yes.
What is the difference between expected value and mean? In other words, what would be difference between the expected value of something, as opposed to the mean of that something? And how do I know when I should be finding the expected value and n..
Monthly sales figures for store are as follows. Determine the:Mid-rangeStandard Variance.
Calculate the mean and the standard error of the sampling distribution of the sample means. Also, find the mean and standard error of the sampling distribution for samples of size 5.
What then is the probability that a shaft will be acceptable? Suppose that the diameter of the shaft is a random variable that is Normally distributed.
If he selects the three brands at random, what is the probability that he will select the following?
Write down the name of 4 parts of the regression equation.
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