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A ten year old survey found that the average income of sole proprietor CPA's was $74,914. To update this information, a new survey of 112 proprietor CPA's was taken and it showed a mean of $74,695. Use a 5% level of significance to test whether the average income sole proprietor CPA's has increased. assume a population standard deviation of $14.530. Report the value. What is is your conclusion?
Compute the mean number and median number of apples in a bag.
As a part of the feasibility study, they wish to estimate the mean weekly child-care cost of their employees. A sample of 10 employees who use child care reveals the following amounts spent last week.
To demonstrate the effectiveness of the drug, a researcher selects a sample of n = 25 children diagnosed with the disorder and measure each child's attention span before and after taking the drug.
I need to make a perfect positive linear correlation scatter diagram. Could you please outline this procedure so that I can continue to make other scatter diagrams
In a poll of 1,004 adults, 93% indicated that restaurants and bars should refuse service to patrons who have had too much to drink. Construct the 90% confidence interval for the proportion of all adults who feel the identical way.
History suggests that the average number of hurricanes formed during a year is 6.0 hurricanes. Find the probability of at most three hurricanes being formed during a randomly selected year.
A fabric manufacturer wants to know how large an advantage in strength fabrics treated by the Permafresh method have over the fabrics treated by the Hylite process. Give a 90% confidence interval for the difference in mean breaking strengths.
At the .01 significance level, can we conclude that there is more variation in the selling prices of the oceanfront homes?
In a clinical study of an allergy drug, 112 of the 210 subjects reported experiencing significant relief from their symptoms. At the 0.01 significance level,
What is Optimal solution? Using Linear Programming or any other methods (Optional) Explain in Detail What does it mean "Optimal Solution"?
Define the standard error of the mean. What happens to the standard error as the sample size increases? Explain
In optimal solution, determine minimum time needed to complete project?
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