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Unformatted text preview: times, Tom Cruise averaged a height of 35.92 cm/jump, with a standard deviation of 0.60 cm. Find the number of Toms jumps that were greater than 34.96 cm in height. 13. Eric Cartman has ridden a bull thousands times. During a random sample of 20 rides, Eric stays on the bull for an average of 8.240 seconds, with a sample standard deviation of 0.314 seconds. Estimate the confidence interval of the population mean to a standard 95% confidence level. 14. Sierra Nevada brews thousands of bottles of beer, and you are in charge of quality control. You select 20 bottles at random and find the mean percentage of alcohol for that sample. You repeat this process 25 times. The average of all the means is 8.235%, and the standard deviation of all the means is 0.282%. Estimate the population standard deviation. (Hint, use CLT)...
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- Spring '08