Confidence interval for the mean length
A study of 70 bolts of carpet showed that their average length was 150 yards. The standard deviation of the population is 6 yards. What is the 99% confidence interval for the mean length per bolt of carpet?
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The average yearly Medicare Hospital Insurance benefit per person was $4064 in a recent year. If the benefits are normally disturbed with a standard deviation of $460, find the probability that the mean benefit for a random sample of 20 patients i
A random sample of 70 printers discovered that 37 of them were being used in small businesses. Determine the 99 % confidence interval for the true proportion of printers that are used in small businesses.
The marketing analysis illustrates that 12% of consumers who don't presently drink KickKola will buy KickKola next time they purchase the cola.
A report describes that 40% of home owners had vegetable garden. How large a sample is required to estimate the true proportion of home owners who have vegetable gardens to within 3% with 95% confidence?
A recent survey indicated that average amount spent for breakfast by business managers was $7.58 with a population standard deviation of $0.42. It was felt that breakfasts on the West Coast were higher than $7.58.
Forecast percentage of Midwestern shoppers which will be regular Safe Shop customers and percent which will be regular PayNEat customers as the result of trend.
A political strategist thinks that at least 58% of voters in certain state support his candidate. He then commissions poll of 1000 voters and 60% of them support his candidate. At ? = .05, test the claim.
On July 15, Belen sold 2,000 of shares at $48 per share. On August 30, Belen sold remaining shares at $42 per share. Journalize transactions of June 5, July 15, and August 30.
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When crafting a protagonist for your fiction piece, what aspect do you find most challenging to make compelling and relatable to your audience?
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This discussion post aims to explore the role and impact of community partnerships or coalitions in promoting health and well-being within your home community
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Self-Study: Comparing Counts (Chi Square) Throughout the course, there will be a self-study Discussion pertaining to an important concept or topic covered with