O O O A social media survey found that 71% of parents are "friends" with their children on a certain online networking site. A random sample of 160 parents was selected. Complete parts a through d below a. Calculate the standard error of the proportion. op- (Round to four decimal places as needed.) b. What is the probability that 118 or more parents from this sample are "friends with their children on this online networking site? P(118 or more parents from this sample are "friends" with their children) = (Round to four decimal places as needed.) c. What is the probability that between 114 and 122 parents from this sample are "friends" with their children on this online networking site? P(Between 114 and 122 parents from this sample are "friends" with their children) = (Round to four decimal places as needed.) O CE O d. If 97 parents responded that they are "friends" with their children on this online networking site, does this result support the findings of the social media survey? OA. Yes, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is less than 0.05. OB. No, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is greater than 0.05. OC. No, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is less than 0.05. OD. Yes, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is greater than 0.05. Time Remaining: 01:2
O O O A social media survey found that 71% of parents are "friends" with their children on a certain online networking site. A random sample of 160 parents was selected. Complete parts a through d below a. Calculate the standard error of the proportion. op- (Round to four decimal places as needed.) b. What is the probability that 118 or more parents from this sample are "friends with their children on this online networking site? P(118 or more parents from this sample are "friends" with their children) = (Round to four decimal places as needed.) c. What is the probability that between 114 and 122 parents from this sample are "friends" with their children on this online networking site? P(Between 114 and 122 parents from this sample are "friends" with their children) = (Round to four decimal places as needed.) O CE O d. If 97 parents responded that they are "friends" with their children on this online networking site, does this result support the findings of the social media survey? OA. Yes, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is less than 0.05. OB. No, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is greater than 0.05. OC. No, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is less than 0.05. OD. Yes, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is greater than 0.05. Time Remaining: 01:2
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:A social media survey found that 71% of parents are "friends" with their children on a certain online networking site. A random sample of 160 parents was selected. Complete parts a through d below.
a. Calculate the standard error of the proportion.
=(Round to four decimal places as needed.)
b. What is the probability that 118 or more parents from this sample are "friends" with their children on this online networking site?
P(118 or more parents from this sample are "friends" with their children) =
(Round to four decimal places as needed.)
c. What is the probability that between 114 and 122 parents from this sample are "friends" with their children on this online networking site?
P(Between 114 and 122 parents from this sample are "friends" with their children) =
(Round to four decimal places as needed.)
d. If 97 parents responded that they are "friends" with their children on this online networking site, does this result support the findings of the social media survey?
A. Yes, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is less than 0.05.
OB. No, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is greater than 0.05.
OC. No, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is less than 0.05.
OD. Yes, the probability of obtaining a result this small or smaller given that the findings of the social media survey are accurrate is greater than 0.05.
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