A poil reported that 67% of atults were satisfied with the job the major ailines wero doing. Suppose 20 aduits are selec

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A Poil Reported That 67 Of Atults Were Satisfied With The Job The Major Ailines Wero Doing Suppose 20 Aduits Are Selec 1 (49.96 KiB) Viewed 36 times

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A poil reported that 67% of atults were satisfied with the job the major ailines wero doing. Suppose 20 aduits are selected at random and the number who are sutistied is recorded Complote parts (a) through (0) below. (a) Explain why this is a binomial experiment Choose the correct answer below. A. Ths is-a binomial experiment because there are three mutualily oxchusive outcomes for each trial, there is a foxed number of trials, the outcorne of one trial does not aflect the outcone of anotiver, and the probabilty of success is the same for each trial B. This 15 a binomial experiment because there are fwo mutally exclusive outcomes for each frial, there is a random number of trials, the outcome of one trial does not affect the outcome of another, and the probability of success is the same for each traal C. This is a binomaal experment because there ase two mutually exclusive outcomes for oach trial, there is a foxed number of trals, the outcome of one trial does not affect the outcome of another, and the probability of success is the sarne for esch trial D. This is a binomial experiment because there are two mufually exclusive outcomes for each tiai, there is a fixed number of trials, the outcome of one trial does not affect the oulcome of anofher, and the probabalty of success changes in each trail. (b) Find and inteepret the probability that exactly 11 of them are satisfied with the airlines The probability that exactly 11 aduls are satisfied with the airines is (Round to four decimal places as needed) Interpret the probabilty. Select the correct choice bolow and fill in the answer box within your choice (Round to the nuirest integer as neded.) A. In 100 tandornly sarpled surveys of 20 adults, 11 of more of the 20 adults would be expected to the satisfied with the aitlines in about of those suiveys: B. in 100 randomly sampled surveys of 20 aduls, exactiy 11 out of the 20 aduls would be expected to be satisfied with the airlines in about of those:
Apoifeported that 67% of adults were satisfied with the job the major airlines were doing Suppose 20 adults are selected at random and the number who satisfied is recorded. Complete parts (a) through (0) below. (b) Find and interpret the probability that exactly 11 of them are satisfied with the airlines The probability that exactly 11 adults are satisfied with the airlines is (Round to four docimal places as needed) Interpret the probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) A. In 100 randomly sampled surveys of 20 aduits, 11 or more of the 20 adults would be expected to be satisfied with the airlines in about of those Surveys B. In 100 randomly sampled surveys of 20 adults, exactly 11 out of the 20 aduits would be expected to be satisfied with the airlines in about of those surveys C. In 100 randomly sampled surveys of 20 adults. less than 11 of the 20 adults would be expected to be satisfied with the arrines in about of those surveys (c) Find and interpret the probability that at least 17 of them are satisfied with the aifines.
A poll reported that 67% of aduls were satished with the job the major airines were doing Suppose 20 adults are soloctod at random and the number who are satisfied is recorded Complole parts (a) through (e) below (c) Find and interpret the probability that at least 17 of then are satisfiod with the arfines The probability that at least 17 adults are satisfied with the airlines is (Round to four decimal places as necded) Interpret the probablly. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest inleger as neoted.) A. In 100 randomiy sampled surveys of 20 adults, 17 or more of the 20 aduits would be expocted to be satisfiod with the airlines ab about of those surveys: B. In 100 randomly sampled surveys of 20 adults, less than 17 of the 20 adults would bo expected to be sabsfied with the airlines in about of those 5urveys C. In 100 tandomly sampled surveys of 20 adults, exactly 17 out of the 20 adults would bo expected to be satisfied with the airlines in about of those surveys (d) Find and interpret the probability that between 9 and 12 of them, inclusive; are salisfied with the airines The probability that between 9 and 12 aduits, inclusive, are satisfied with the airkies is (Round to four decimal ploces as needed, Inserpret the probability. Sehect the correct choice below and fill in the answer box within your choice (Round to the nearest integer as needed) A. In 100 tandomly samplod surveys of 20 adults, mo more than 9 or no less than 12 out of the 20 adults wouzd be mpectod to be satisfied with the airlaes in about of those surveys
A poll reported that 67% of adults were satrsfied with the job the major airlines wore doing. Suppose 20 adults are solected at random and the number who are satisfiod is recordod Complete parts (a) through (o) bolow C. In 100 randoenly sampled surveys of 20 adults, exactly 17 out of the 20 adults would be expected bo be satisfied with the asines in about of those surveys: (d) Find and interpret the probabily that betwoen 9 and 12 of them, inclusive, are satisfied with the airinos The probabilty that between 9 and 12 adults, inclusive, are satesfied with the airlines is (Round 10 four decimal places as needed. Interpret the probablity. Select the correct choice beiow and fit in the answer bex within your choice. (Round to the nelrest intoger as neded). A. In 100 randomly sampled surveys of 20 adults, no mote than 9 of no less than 12 out of the 20 adults would be expected to be satisfied with the aitines in. about of those surveys: B. In 100 tandomly sampled surveys of 20 adults, between 9 and 12 of the 20 aduits woukd be expected to be satisfied with the atines in about of those surveys. C. In 100 randomly sampled surveys of 20 adults, either 10 or 11 of the 20 adults would be expectod fo be satisted with the aiflines in about of those surveys (e) Would it be unusual to find more than 17 who are satisfied with tho job tho major arlines were doing? The result unusual, because P(x>17)= under the assumphion that the proportion of aduits that are satistied with the airines is 675 Thus, in 100 random samples of sqoe 20, this resuit is expected in about of the random samples (Type integers or decimals Round to four decimal placos as needed)