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The half width of a 99% confidence interval for a mean based on sample size of 30 is 10. What is the value of the sample standard deviation? Give your answer to 2 decimal places.
Statistics and Probability, Statistics
Question: A number of public policies related to alcohol consumption have been instituted over the past couple of decades in an attempt to limit the number of alcohol-related traffic fatalities. These policies include: • ...
Consider a normally distributed set of scores with a mean of 0 and a standard deviation of 5. If a value of 3.25 is sampled from this distribution, what is the corresponding z-score? If necessary, round your answer to tw ...
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How do you find the minimum sample size when population standard deviation is anywhere between 14 to 24, and the half-width B desired could be anywhere between 2 to 7?
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Boxes of sugar are filled by machine with considerable accuracy. The distribution of box weights is normal and has a mean of 32 ounces with a standard deviation of only 2 ounces. A quality control inspector takes a sampl ...
Fifty-seven percent of employees make judgements about their co-workers based on the cleanliness of their desk. You randomly select 8 employees and ask them if they judge co-workers based on this criterion. The random va ...
1) If there are 150 values in a data set, how many classes should be created for a frequency histogram? A. 5 B. 6 C. 7 D. 8 E. 9 2) . If x is a binomial random variable where n = 100 and p = 0.2, find the probability th ...
Thanks for starting our discussion on Cash Management. If you think about it this comes down to speeding up collections of cash or slowing down disbursements of cash. Point out some strategies to accomplish it? Give refe ...
An investor would like to add the following bond to her portfolio. The bond would be held for 7 years and then sold. The investor has gathered the following information to analyze the bond: Company XYZ Currency: CAD Face ...
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