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A machine fills containers with a mean weight per container of 16oz. If no more than 5% of the containers are to weigh less than 15.8oz, what must the standard deviation of weights equal?
For a regional survey of suburban households to obtain data on television viewing habits, a statistical sample of suburban areas is first selected. Within the chosen areas, statistical samples of whole blocks are selected; and within the selected..
Compute the skewness for your data set using Pearson's
Paired samples t-test for the given data - financial advice from the voluntary organization - A local voluntary organization affiliated to the Citizens Advice Bureau offers free financial advice to residents in the area who are registered debtors
What maximum variance of the raw score population could you have and still be able to reject the null hypothesis of μ = 20 (α = .05), if the sample size is 100 and the sample mean is 22?
The best estimator or appreciative for the population proportion is 0.45. How large must the sample be?
Jolly Blue Giant Health Insurance is concerned about rising lab test costs and would like to know. Determine the essential sample size?
For a random sample of 50 batteries, what is the probability that the sample mean will be less than 27.5 hours?
Determine a 95% confidence interval for the true mean weight of such boxes?
Calculate the 95% confidence interval for the proportion of students with at least one injury for each of the two subpopulation
From her district, consisting of several hundred stores, she selects a random sample of 30 stores. For each store she gathered the following information.
If you have a statistical package that computes binomial probabilities, find the probability that at least five funds outperform the market in all 10 years.
Find a 95% confidence interval for the mean µ of the population from which the men were selected.
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