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Create a contingency table for this data:
In a "taste test" fourteen men showed a preference for Coke an the same number showed a preference for Pepsi. Twelve women preferred Coke and fourteen preferred Pepsi.
Analyze and interpret the data.
206 randomly selected light bulbs were tested in a laboratory, 161 lasted more than 500 hours. Find a point estimate of the proportion of all light bulbs that last more than 500 hours.
What is the formula is for a population with a mean of u=60 and a standard deviation of sigma=24. Find the z score corresponding to the sample m=63 for a sample of n =16 scores,.
Standard deviation of 10.6 points. The lower 5% of the class will not get a passing grade. Find the score that separates the lower 5% from the rest of the class.
A professor of math refutes the claim that the average student spends 3 hours studying for the midterm exam. Which hypothesis is used to test the claim?
An olympic archer is able to hit the bull's-eye 70% of the time. Assume each shot is independent of the others. If she shoots 6 arrows, what is the probablitly that she never misses?
Explain the difference between multiple independent variables and multiple levels of independent variables. Which is better?
What is the probability that she gets exactly 4 bull's-eyes? How many bull's-eyes do you expect her to get out of the 6 arrows and what is the standard deviation?
Has there been a significant shift upward in the percentage of persons who want to go to Europe? Using the .05 significance level for this study.
Find out optimal assignment and calculate total minimum cost.
Six employees who have formed a car pool. If only four of these employees can drive, how many possible seating arrangements are there for the group?
I never understood the concept of the Empirical Rule and Chebyshev's Rule. Can you explain it to me and provide me with some sample problems please?
Conduct a hypothesis test at the 6% level of significance to determine whether there is evidence that the true mean fill volume for all jugs of softener differs from 120 ounces.
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