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The weights of bags of cookies are normally distributed with a mean of 15 oz and standard deviations of 0.085 oz. Bags of cookies that have weights in the upper 7.5% are too heavy and must be repackaged. What is the most a bag of cookies can weigh and not need repackaging?
What type of data would you obtain from a rating scale? Prove an application/example in your response of how this instrument could be used. For what population would you use a graphical rating scale?
At a food processing plant, a machine produces 10 lb bags of sugar. In this particular process, it is important that the sugar content does not go below 9.9 lbs. In fact, when the bags of sugar are less than 9.9 lbs, maintenance is performed on th..
What effect has the transformation had on the lowest exam mark and what effect has the transformation had on the highest exam mark - STATS 201/8 Data Analysis
Pharmacies continually monitor their prescription filling process. A local pharmacy has noted that the time to fill a prescription for a generic antibiotic is normally distributed, with a mean of 13.3 minutes and a standard deviation of 2.8 minute..
According to a national survey of 1,500 Silverman Sachs customers, 1,050 of them were either satisfied or very satisfied with their financial advisor.
Assume that the annual rate of return for a common biotechnology stock is normally distributed with a mean of 5.5% and a standard deviation of 6%.
A medical doctor wishes to test the claim that the standard deviation of the systolic blood pressure of deep sea divers is less than 450. To do so, she selected a random sample of 20 divers and found s = 432.
The politician's advisors estimated the proportion supporting her fiscal policy to be .60. How large of a sample is required?
A recent report in BusinessWeek indicated that 20 percent of all employees steal from their company each year. fewer than 5 employees steal?
Why are quasi-experimental designs used more often than experimental designs?
What is correlation analysis? How can correlation analysis be used in a business decision or examples specifically related to strategy formulation and implementation?
Determine the z values for 29 and 34 hours. What percent of the garages take between 32 hours and 34 hours to erect?
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