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The quantity of milk in a bottle is normally distributed with mean 1000ml. Find the standard deviation given that the probability of less than 990ml in a randomly selected bottle is 5%. What can you say about the standard deviation if the probability is less than 5%?
a random sample of size 36 is selected from a population whose mean is 70 and standard deviation is 6. calculate the
Human populations can be modeled using an exponential growth function. Use the Library for research or other resources to find the following:
Determine margin of error for confidence interval in (a)?
Philanthropic organizations, such as the Gates Foundation
Find the power of the test designed to determine if the the new safety equipment is effective when the mean percent reduction is actually 2.3%. Assume that the population standard deviation is 12% and that α is 0.02. What is the power?
What is the probability that a consumer buys a can whose contents are actually less than the stated weight of 16 oz.?
Model Fitness. With any statistical model, we assess the fit: Does the model accurately depict the truth? Explain how one of the following helps assess the "fitness" of the mean.
What is the 95% confidence interval for the standard deviation of birth weights at County General Hospital, if the standard deviation of the last 25 babies born there was 1.1 pounds.
A Private firm reports that 8% of the 2 million small businesses who apply for loan each year receive special interest rate (usually higher than market rate) because of high riskiness associated with small business.
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.
An auditor reviewed 25 oral surgery insurance claims from a particular surgical office, determining that the mean out-of-pocket patient billing above the reimbursed amount was $275.66 with a standard deviation of $78.11.
How many participants would be required to ensure that a 95% confidence interval for the mean difference in the number of drinks is within two drinks of the true mean? Assumed that the standard deviation of the difference in the mean number of dri..
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