If 2% of the population is allergic to peanuts an(d)/(o)r tree nuts, what is the probability that more than 4 out of a SRS of 100 individuals are allergic to peanuts an(d)/(o)r tree nuts?
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If 2% of the population is allergic to peanuts an(d)/(o)r tree nuts, what is the
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- suppose we select an SRS of 1010 adults. If it is believed that 60% of all adults are very satisfied with their lives, what is the probability that at least 610 adults in our sample are very satisfied with their lives?Let X be the number (out of 1010) of adults who are very satisfied with their lives. What distribution should X have? Why?A survey showed that 83% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 18 adults are randomly selected, find the probability that at least 17 of them need correction for their eyesight. Is 17 a significantly high number of adults requiring eyesight correction? ... The probability that at least 17 of the 18 adults require eyesight correction is (Round to three decimal places as needed.)The probability that a machine develops a fault within the first 3 years of use is 0.003. If 40 machines are selected at random, the probability that 38 or more will not develop any faults within the first 3 years of use is ....
- 2. The odds against The Toronto Argonauts winning the Grey Cup are estimated at 21 to 8. What is the probability that the Argos will win the cup and NOT win the cup (11) Let A = Let A' =A manufacturer of aspirin claims that the proportion of headache sufferers who get relief with just two aspirins is 63.8%. What is the probability that in a random sample of 580 headache sufferers, less than 59.5% obtain relief? Probability=?A pharmaceutical company is running trials on a new test for anabolic steroids. The company uses the test on 400 athletes known to be using steroids and 200 athletes known not to be using steroids. Of those using steroids, the new test is positive for 375 and negative for 25. Of those not using steroids, the test is positive for 25 and negative for 175. What is the relative frequency of a false negative result (the probability that an athlete using steroids will test negative)? (Round your answer to two decimal places.) What is the relative frequency of a false positive result (the probability that an athlete not using steroids will test positive)? (Round your answer to two decimal places.)
- Suppose that 20% of the adult women in the United States dye or highlight their hair. We would like to know the probability that a SRS of size 200 would come within plus or minus 3 percentage points of this true value. In other words, find probability that ˆ p takes a value between 0.17 and 0.23.A survey showed that 74% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 18 adults are randomly selected, find the probability that no more than 1 of them need correction for their eyesight. Is 1 a significantly low number of adults requiring eyesight correction? The probability that no more than 1 of the 18 adults require eyesight correction is (round to three decimal places as needed)A survey showed that 79% of adults need correction (eyeglasses, contacts, surgery, etc.) for their eyesight. If 15 adults are randomly selected, find the probability that at least 14 of them need correction for their eyesight. Is 14 a significantly high number of adults requiring eyesight correction? The probability that at least 14 of the 15 adults require eyesight correction is nothing. (Round to three decimal places as needed.)
- During the 1971-72 season, the Los Angeles Lakers won 69 games and lost 13. Assuming that the outcomes of the basketball games are independent and that the percentageof wins this season will be the same as in 1971-1972, answer the following questions: (a) What is the probability that the Lakers will win the first twogames of the season? (b) What is the probability that the Lakers will win the first sevengames of the season?Q5. It was found that a New Brunswick family doctor has on average 14 patients calling in for anappointment they say they need to have on that very day during a standard 10 hour work day.Using the tables(a) What is the probability that a New Brunswick family doctor has more than 20 patientscalling in for an appointment they say they need to have on that very day during a standard10 hour work day?(b) What is the probability that a New Brunswick family doctor has more than 2 patientscalling in for an appointment they say they need to have on that very day during the nexthour?(c) What is the probability that a New Brunswick family doctor has 7 or less 20 patientscalling in for an appointment they say they need to have on that very day during the next3 hours?(d) For this situation, determine the probabilities of being within 1, 2 an d 3 standard deviations for the mean and compare these results to the empirical ruleThe health of two independent groups of 10 persons each is being studied for 6 months. The probability anyone individual in either group drops out before the end of the 6 months is 0.2 (independent of the otherparticipants). What is the probability at least 9 persons finish the study in either one of the two groups butnot in both groups?
