Determine the empirical rule
Determine the empirical rule and how is it employed to interpret data? If I have a standard deviation of 2 what does that mean in relation to this rule?
Please example of when it might be used.
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Assume IQ scores were obtained from randomly chosen sibling. For 20 such pairs of people, the linear correlation is 0.917 and equation of the regression line is y=6.44+0.94x, where x shows IQ score of the younger child.
Devise rule based upon failed log-in episodes for computer network given the time between failed episodes has exponential distribution with mean of 40 minutes.
A company's manufacturing process employs 500 gallons of water at a time. A "scrubbing" machine then removes most of a chemical pollutant before pumping the water into a nearby lake.
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For borrowers with the good credit scores, the mean debt for revolving and installment accounts is $15,015 (BusinessWeek, March 20, 2006). Suppose the standard deviation is $3540 and that debt amounts are normally distributed.
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According to the Sleep Foundation, average night's sleep is 6.8 hours (Fortune, March 20, 2006). Suppose the standard deviation is .6 hours and that the probability distribution is normal.
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