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Fish Oil and Blood Pressure (One-Sample Analysis).
Repeat Exercise 19 for the group of men who were given the fish oil diet and then answer these questions: Is there any evidence that the mean reduction for this group is different from zero? What is the typical reduction in blood pressure expected from this type of diet (for individuals like these men)? Provide a 95% confidence interval.
The true proportion of all current B of A customers who would respond with a 9 or 10. Are we 95 % confident that this proportion exceeds .48 the historical proportion of customer delight for B of A?
A random sample of 64 with a mean of 50 and a standard deviation of 20 is taken from a population of 800. Find an interval estimate for the population mean such that we are 95% con?dent that the interval includes the population mean.
The owner of a small computer store personally sells one computer per week on the average. Use the Poisson distribution to find the probability of randomly selecting a week in which she personally sold three computers.
A 'good' correlation is data-context driven. For example, I did a project correlating sales volume per state and customer demographics (pretty 'hard' data) and got a .92 correlation.
Calculate a 95% confidence interval for the difference in the proportions of birth defects when the contaminated well was in use and when the contaminated well was not in use.
the probability that a military system is in an in-control condition is 0.96 and that it is in an out-of- control
Is there a relationship between whether or not someone completed and returned their 2011 census report and their opinion of gun control?
the following data represent the amount of sugar consumed in lbs. in a household during five randomly selected weeks.
A study of 20 worldwide financial institutions showed the correlation between their assets and pretax profit to be .86. At the .05 significance level
using a binomial table find the binomial probabilities px associated with given n ratio and x. a. n6 ratio 0.10 p4 b.
The Appliance Center has six sales representatives at their North Jacksonville outlet. Listed below is the number of refrigerators sold by each last month.
in an analysis of variance summary table if the mean square between 43 and the mean square within23 then the null
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