A poll reported that 63% of adults were satisfied with the job the major airlines were doing. Suppose 25 adults are selected at random and the number who are satisfied is recorded. Complete p (a) through (e) below. (e) Find and interpret the probability that at least 20 of them are satisfied with the airlines. The probability that at least 20 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 25 adults, 20 or more of the 25 adults would be expected to be satisfied with the airlines in about OB. In 100 randomly sampled surveys of 25 adults, less than 20 of the 25 adults would be expected to be satisfied with the airlines in about OC. In 100 randomly sampled surveys of 25 adults, exactly 20 out of the 25 adults would be expected to be satisfied with the airlines in about (d) Find and interpret the probability that between 11 and 14 of them, inclusive, are satisfied with the airlines. of those surveys. of those surveys. of those surveys. The probability that between 11 and 14 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 25 adults, between 11 and 14 of the 25 adults would be expected to be satisfied with the airlines in about OB. In 100 randomly sampled surveys of 25 adults, either 12 or 13 of the 25 adults would be expected to be satisfied with the airlines in about of those surveys. OC. In 100 randomly sampled surveys of 25 adults, no more than 11 or no less than 14 out of the 25 adults would be expected to be satisfied with the airlines in about (e) Would it be unusual to find more than 22 who are satisfied with the job the major airlines were doing? The result unusual, because P(x>22) expected in about of the random samples. of those surveys. under the assumption that the proportion of adults that are satisfied with the airlines is 63%. Thus, in 100 random samples of size 25, this result i (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 25 adults are selected at random and the number who are satisfied is recorded. Complete p (a) through (e) below. (e) Find and interpret the probability that at least 20 of them are satisfied with the airlines. The probability that at least 20 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 25 adults, 20 or more of the 25 adults would be expected to be satisfied with the airlines in about OB. In 100 randomly sampled surveys of 25 adults, less than 20 of the 25 adults would be expected to be satisfied with the airlines in about OC. In 100 randomly sampled surveys of 25 adults, exactly 20 out of the 25 adults would be expected to be satisfied with the airlines in about (d) Find and interpret the probability that between 11 and 14 of them, inclusive, are satisfied with the airlines. of those surveys. of those surveys. of those surveys. The probability that between 11 and 14 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 25 adults, between 11 and 14 of the 25 adults would be expected to be satisfied with the airlines in about OB. In 100 randomly sampled surveys of 25 adults, either 12 or 13 of the 25 adults would be expected to be satisfied with the airlines in about of those surveys. OC. In 100 randomly sampled surveys of 25 adults, no more than 11 or no less than 14 out of the 25 adults would be expected to be satisfied with the airlines in about (e) Would it be unusual to find more than 22 who are satisfied with the job the major airlines were doing? The result unusual, because P(x>22) expected in about of the random samples. of those surveys. under the assumption that the proportion of adults that are satisfied with the airlines is 63%. Thus, in 100 random samples of size 25, this result i (Type integers or decimals. Round to four decimal places as needed.)

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 4ECP: Show that the probability of drawing a club at random from a standard deck of 52 playing cards is...

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