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The U. S. National Highway Traffic Safety Administration gathers data concerning the causes of highway crashes where at least one fatality has occurred. The following probabilities were determined from the 1998 annual study (BAC is blood-alcohol content).
P(BAC =0!Crash with fatality) = .616P(BAC is between .01 and .09! Crash with fatality) = .300P(BAC is greater than .09 ! Crash with fatality) = .084
Suppose that over a certain stretch of highway during a 1-year period, the probability of being involved in a crash that results in at least one fatality is .01. It has been estimated that 12% of the drivers on this highway drive while their BAC is greater than .09. Determine the probability of a crash with at least one fatality if a driver drives while legally intoxicated (BAC greater than .09).
The Dean of Students believes that the costs are greater this semester. What is the test value for this hypothesis?
the annual incomes of the five vice presidents of ellys industries are 41000 38000 32000 33000 and 50000. the annual
Provide a descriptive statistic (to 1 decimal) that could be used to estimate the number of women out of 1000 in this population who have tissue abnormalities.
No, there is not enough information to refuse hypothesis that proportion of male students who live on campus and proportion of female students who live on campus are same as the test value -1.65 is inside acceptance region (-1.96,1.96).
A survey is planned to determine the mean annual family medical expenses of employees of a large company. The management of the company wishes to be 95% confident that the sample mean is correct to within plus-or-minus $50 of the population mean.
consider the set of odd single-digit integers 13579.a make a list of all samples of sixe 2 that can be drawn from this
One grand prize of $600 and two consolation prizes of $100 each will be awarded. Jeremy purchases one ticket. Find his expected value. Show your work for full credit.
Explain the difference between descriptive and prescriptive (optimization) models. Describe how to use Excel data tables, scenario manager, and goal seek tools to analyze decision models.
Based off the three requirements that must be met before an analysis of variance test (ANOVA) can be used: Samples must be randomly selected from the populations to be evaluated.
Do these results suggest that the racial makeup of the faculty members is different from that of the students? (Use the .05 significance level.) Use the five steps of hypothesis testing and explain your findings.
a meteorologist claims that the average of the highest temperature in the united states is 98 degrees. a random sample
The sample mean of the accounts is found to be y-bar = $94.22, and the sample variance is equal to $455.21. Estimate mu and place a bound on the error of estimation.
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