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1. Quality control. A tire manufacturer recently announced a recall because 2% of its tires are defective. If you just bought a new set of four tires from this manufacturer, what is the probability that at least one of your new tires is defective?
2. Pepsi promotion. For a sales promotion, the manufacturer places winning symbols under the caps of 10% of all Pepsi bottles. If you buy a six-pack of Pepsi, what is the probability that you win something?
3. Auto warranty. In developing their warranty policy, an automobile company estimates that over a 1-year period 17% of their new cars will need to be repaired once, 7% will need repairs twice, and 4% will require three or more repairs. If you buy a new car from them, what is the probability that your car will need:
a) No repairs?
b) No more than one repair?
c) Some repairs?
a government agency has specialists who analyze the frequencies of letters of the alphabet in an attempt to decipher
The population standard deviation can be assumed known as .24. What is the 95% confidence interval estimate of the mean undergraduate GPA for students admitted to the top graduate business schools.
In a certain craps game at a casino, if you place a bet on the "4", and a 4 comes up on a roll of the two dice before a 7 comes up, the payout odds are 9 to 5. Convert these odds to the player's win probability.
in a cheese factory 5.0 kg blocs of cheese are cut manually. for a large number of blocks the standard deviation of the
the duration of alzheimers disease from the onset of symptoms until death ranges from 3 to 20 years with a mean of 8
The 587th of the 731 trees in the preserve was selected as the first observation in the sample. What is the tree number of the second observation in the sample?
groupmeanstdevpopulation nmen51411280382women48510392420the cutoff for mathematics scores is 550. how many texas men
the primary property of the alloys used for teeth filling is the percent of shrinkage on driving. for a certain alloy
A sporting goods producer claims that the variance of the strengths of a certain fishing line is 15.9. A random sample of 15 spools has a variance of 21.8. At "alpha" = 0.01, can the claim be proven wrong
1 a student studying for a vocabulary test knows the meanings of 14 words from a list of 20 words. if the test contains
For a random sample of 50 batteries, what is the probability that the sample mean will be less than 27.5 hours?
Find the minimum sample size needed, using a prior study that found that 36% of the respondents said they have high speed Internet access.
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