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A woman sued a computer keyboard manufacturer, charging that her repetitive stress injuries were caused by the keyboard. The injury awarded about $3.5 million for pain and suffering, but the court then set aside that award as being unreasonable compensation. In making this determination, the court identified a "normative" group of 27 similar cases and specified a reasonable award as one within two standard deviations of the mean of the awards in the 27 cases. The 27 awards are (in $1000s) given below. What is the maximum possible amount that could be awarded under the two-standard-deviation rule? (Enter your answer to the nearest thousand.) 990 896 1178 1554 1883 849 1836 567 849 943 1366 50 1648 1037 1601 1037 1225 943 1366 1460 285 943 1695 802 1225 285 567
Mean caffeine content of 146 milligrams and a standard deviation of 22 milligrams. At α = .10, do you have enough evidence to reject the shop's claim?
A researcher claims the average American drinks 52 gallons of cola per year with a population standard deviation of 2.0 gallons. We sample 25 random people and find the mean yearly consumption was 49 gallons.
Provide a summary of the research article. Include a hypothesis null and hypothesis alternate statement for an ANOVA process. Identify a data set that can be used for your ANOVA process.
What is the probability that of today's 1,300 callers at least 5 received a busy signal? Use the poisson approximation to the binomial.
The mean clotting time is 7.45 seconds with a standard deviation of 3.6 second. what is the probability that an individuals clotting time will be more than 4 seconds and less than 11?
The borderline between low calcium levels and those not considered low. Carry your intermediate computations to at least four decimal places. Round your answer to at least one decimal place.
Forecasters interest rate predictions over the period 1982 1990 were studied to see whether the predictions corresponded to what actually happened.
Determine how large a sample would be necessary to estimate the population proportion with a margin of error of .05 at 95% confidence
What is the largest possible value of the covariance? Remember that r can be positive or negative and what is the covariance between X and Y
Monitoring the ecological health of the Everglades-the bottom temperatures are recorded at the Garfield Bight station and the mean of 19.7 degrees C is obtained for 62 temperatures on 62 different days.
Drugstore was the first e-commerce company to offer Internet drugstore retailing. Drugstore.com customers were provided the opportunity to buy health, beauty, personal care, wellness, and pharmaceutical replenishment products over the Internet.
A car dealership is worried that Hondas are getting lower sales than Hyundai. Two independent random samples have been selected 630 observations from population 1 (Hondas) and 610 from population 2 (Hyundai).
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