Final_Review_Addendum_with_Key

Final_Review_Addendum_with_Key - driver. A random sample of...

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A report from the Secretary of Health and Human Services stated that 70% of single-vehicle traffic fatalities that occur at night involve an intoxicated driver. A random sample of 50 single-vehicle traffic fatalities that occurred at night is selected. a. What is the probability that exactly 35 accidents involved an intoxicated driver? b. What is the probability that 29 or fewer accidents involved an intoxicated driver? c. What is the probability that at least 33 but no more than 39 accidents involved an intoxicated driver? d. If there were 430 single-vehicle traffic fatalities at night nationwide during the month of July, how many of them would you expect to involve an intoxicated driver? SCROLL DOWN FOR ANSWERS
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A report from the Secretary of Health and Human Services stated that 70% of single-vehicle traffic fatalities that occur at night involve an intoxicated
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Unformatted text preview: driver. A random sample of 50 single-vehicle traffic fatalities that occurred at night is selected. e. What is the probability that exactly 35 accidents involved an intoxicated driver? P(X = 35) = 0.122346862 =BINOMDIST(35,50,0.7,FALSE) f. What is the probability that 29 or fewer accidents involved an intoxicated driver? P(X< 29) = 0.047763835 =BINOMDIST(29,50,0.7,TRUE) g. What is the probability that at least 33 but no more than 39 accidents involved an intoxicated driver? P(33 < x < 39) 0.703342437 =BINOMDIST(39,50,0.7,TRUE)-BINOMDIST(32,50,0.7,TRUE) h. If there were 430 single-vehicle traffic fatalities at night nationwide during the month of July, how many of them would you expect to involve an intoxicated driver? E = = np = 430*.70 = 301...
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This note was uploaded on 10/22/2011 for the course ACCT 3551 taught by Professor Brown during the Spring '11 term at UNC.

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Final_Review_Addendum_with_Key - driver. A random sample of...

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