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Disney tells you that the average distance between the ears on a Mickey Mouse hat is 5 inches. In a sample of 100 Mickey Mouse hats you find that the average distance between the ears on the hats is 5.2 inches with a standard deviation of 1 inch. Conduct a hypothesis test to determine if the average distance between the ears on a Mickey Mouse hat is greater than 5 inches. Assume that α = .01 and remember to clearly state the null and alternate hypothesis as well as your conclusion about the average distance between the ears of a Mickey Mouse hat.
You are asked to estimate the chance that the sum will be positive.
Correlation between the two variables - Evaluate the value of the correlation coefficient.
By using the maximax criterion, what decision should be made by the decision maker?
What is the appropriate procedure to test for a significant difference in means between the two groups? Implement the procedure in problem using the critical value method
A random sample of 10 shafts has an average diameter of 0.2545 inches. a) Construct a 99% confidence interval of the true mean
Consider a large population of families with three children each. If the genders of children in any family are independent of one another, the number of male children in any family will have a binomial distribution based on three trials.
On a test, a sample of 5 students has a mean score of 78. The scores of four students of them are: 87, 81, 76, 53. Find the test score of the fifth student and standard deviation of this sample.
A discussion of extreme weather reports that: "In most states, hurricanes occur infrequently. Yet, when a hurricane hits, the losses can be catastrophic.
Why is cohort studies more expensive than case-control studies? I know one problem is cohort studies often must be followed up for a long period to determine whether the outcome of interest has developed and they are more expense than case-control..
Medical tests were conducted to learn about drug-resistant tuberculosis. Of 142 cases tested in NJ, 9 were found to be drug-resistant. Of 268 cases tested in Tx, 5 were found to be drug-resistant.
Management wishes to know how many casks of each wine to make to maximize total. profit. Prepare the linear programming model for this problem.
In the accompanying table, the random variable x represents the number of televisions in a household in a certain country. Determine whether or not the table is probability distribution. If it is a probability distribution, find its mean and stand..
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