A poll reported that 66% of adults were satisfied with the job the major airlines were doing. Suppose 15 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. (a) Explain why this is a binomial experiment. Choose the correct answer below. A. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed 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 trial. OB. This is a binomial experiment because there are three mutually exclusive outcomes for each trial, there is a fixed 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 trial. OC. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed number of trials, the outcome of one trial does not affect the outcome of another, and the probability of success changes in each trial. O D. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, 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 trial. (b) Find and interpret the probability that exactly 8 of them are satisfied with the airlines. The probability that exactly 8 adults are satisfied with the airlines is (Round to four decimal 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.) OA. In 100 randomly sampled surveys of 15 adults, less than 8 of the 15 adults would be expected to be satisfied with the airlines in about OB. In 100 randomly sampled surveys of 15 adults, 8 or more of the 15 adults would be expected to be satisfied with the airlines in about OC. In 100 randomly sampled surveys of 15 adults, exactly 8 out of the 15 adults would be expected to be satisfied with the airlines in about (c) Find and interpret the probability that at least 11 of them are satisfied with the airlines. The probability that at least 11 adults are satisfied with the airlines is (Round to four decimal places as needed.) of those surveys. of those surveys. of those surveys.
A poll reported that 66% of adults were satisfied with the job the major airlines were doing. Suppose 15 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. (a) Explain why this is a binomial experiment. Choose the correct answer below. A. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed 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 trial. OB. This is a binomial experiment because there are three mutually exclusive outcomes for each trial, there is a fixed 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 trial. OC. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed number of trials, the outcome of one trial does not affect the outcome of another, and the probability of success changes in each trial. O D. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, 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 trial. (b) Find and interpret the probability that exactly 8 of them are satisfied with the airlines. The probability that exactly 8 adults are satisfied with the airlines is (Round to four decimal 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.) OA. In 100 randomly sampled surveys of 15 adults, less than 8 of the 15 adults would be expected to be satisfied with the airlines in about OB. In 100 randomly sampled surveys of 15 adults, 8 or more of the 15 adults would be expected to be satisfied with the airlines in about OC. In 100 randomly sampled surveys of 15 adults, exactly 8 out of the 15 adults would be expected to be satisfied with the airlines in about (c) Find and interpret the probability that at least 11 of them are satisfied with the airlines. The probability that at least 11 adults are satisfied with the airlines is (Round to four decimal places as needed.) of those surveys. of those surveys. of those surveys.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The probability that at least 11 adults are satisfied with the airlines is
(Round to four decimal 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.).
OA. In 100 randomly sampled surveys of 15 adults, less than 11 of the 15 adults would be expected to be satisfied with the airlines in about
OB. In 100 randomly sampled surveys of 15 adults, 11 or more of the 15 adults would be expected to be satisfied with the airlines in about
OC. In 100 randomly sampled surveys of 15 adults, exactly 11 out of the 15 adults would be expected to be satisfied with the airlines in about
(d) Find and interpret the probability that between 6 and 9 of them, inclusive, are satisfied with the airlines.
The probability that between and 9 adults, inclusive, are satisfied with the airlines is. (Round to four decimal 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.)
of those surveys.
OA. In 100 randomly sampled surveys of 15 adults, either 7 or 8 of the 15 adults would be expected to be satisfied with the airlines in about
OB. In 100 randomly sampled surveys of 15 adults, no more than 6 or no less than 9 out of the 15 adults would be expected to be satisfied with the airlines in about
OC. In 100 randomly sampled surveys of 15 adults, between 6 and 9 of the 15 adults would be expected to be satisfied with the airlines in about
(e) Would it be unusual to find more than 12 who are satisfied with the job the major airlines were doing?
The result
unusual, because P(x> 12) =
expected in about of the random samples.
(Type integers or decimals. Round to four decimal places as needed.)
of those surveys.
of those surveys.
of those surveys.
of those surveys.
of those surveys.
under the assumption that the proportion of adults that are satisfied with the airlines is 66%. Thus, in 100 random samples of size 15, this result is
Transcribed Image Text:A poll reported that 66% of adults were satisfied with the job the major airlines were doing. Suppose 15 adults are selected at random and the number who are satisfied is recorded. Complete
parts (a) through (e) below.
(a) Explain why this is a binomial experiment. Choose the correct answer below.
A. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed 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 trial.
C
OB. This is a binomial experiment because there are three mutually exclusive outcomes for each trial, there is a fixed 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 trial.
OC. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, there is a fixed number of trials, the outcome of one trial does not affect the outcome
of another, and the probability of success changes in each trial.
O D. This is a binomial experiment because there are two mutually exclusive outcomes for each trial, 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 trial.
(b) Find and interpret the probability that exactly 8 of them are satisfied with the airlines.
The probability that exactly 8 adults are satisfied with the airlines is
(Round to four decimal 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.)
OA. In 100 randomly sampled surveys of 15 adults, less than 8 of the 15 adults would be expected to be satisfied with the airlines in about
OB. In 100 randomly sampled surveys of 15 adults, 8 or more of the 15 adults would be expected to be satisfied with the airlines in about
OC. In 100 randomly sampled surveys of 15 adults, exactly 8 out of the 15 adults would be expected to be satisfied with the airlines in about
(c) Find and interpret the probability that at least 11 of them are satisfied with the airlines.
The probability that at least 11 adults are satisfied with the airlines is
(Round to four decimal places as needed.)
of those surveys.
of those surveys.
of those surveys.
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