A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. Interpret the probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) O A. In 100 randomly sampled surveys of 20 adults, no more than 9 or no less than 12 out 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, either 10 or 11 of the 20 adults would be expected to be satisfied with the airlines in about of those surveys. C. In 100 randomly sampled surveys of 20 adults, between 9 and 12 of the 20 adults would be expected to be satisfied with the airlines in about 44 of those surveys. (e) Would it be unusual to find more than 17 who are satisfied with the job the major airlines were doing? The result unusual, because P(x> 17) = under the assumption that the proportion of adults that are satisfied with the airlines is 63%. Thus, in 100 random samples of size 20, this result is expected in about of the random samples. (Type integers or decimals. Round to four decimal places as needed.)
A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below. Interpret the probability. Select the correct choice below and fill in the answer box within your choice. (Round to the nearest integer as needed.) O A. In 100 randomly sampled surveys of 20 adults, no more than 9 or no less than 12 out 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, either 10 or 11 of the 20 adults would be expected to be satisfied with the airlines in about of those surveys. C. In 100 randomly sampled surveys of 20 adults, between 9 and 12 of the 20 adults would be expected to be satisfied with the airlines in about 44 of those surveys. (e) Would it be unusual to find more than 17 who are satisfied with the job the major airlines were doing? The result unusual, because P(x> 17) = under the assumption that the proportion of adults that are satisfied with the airlines is 63%. Thus, in 100 random samples of size 20, this result is expected in about of the random samples. (Type integers or decimals. Round to four decimal places as needed.)
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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Question
A poll reported that 63%of adults were satisfied with the job the major airlines were doing. Suppose 20
adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below.
adults are selected at random and the number who are satisfied is recorded. Complete parts (a) through (e) below.
Transcribed Image Text:A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 20 adults are selected at random and the number who are satisfied
is recorded. Complete parts (a) through (e) below.
Interpret the probability. Select the correct choice below and fill in the answer box within your choice.
(Round to the nearest integer as needed.)
O A. In 100 randomly sampled surveys of 20 adults, no more than 9 or no less than 12 out 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, either 10 or 11 of the 20 adults would be expected to be satisfied with the airlines in about
of those
surveys.
C. In 100 randomly sampled surveys of 20 adults, between 9 and 12 of the 20 adults would be expected to be satisfied with the airlines in about 44 of those
surveys.
(e) Would it be unusual to find more than 17 who are satisfied with the job the major airlines were doing?
The result
unusual, because P(x> 17) =
under the assumption that the proportion of adults that are satisfied with the airlines is 63%. Thus, in 100 random
%3D
samples of size 20, this result is expected in about
of the random samples.
(Type integers or decimals. Round to four decimal places as needed.)
EDoctConuorte
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