Answered: A social media survey found that 74%…

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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Question content area bottom

Part 1

a. Calculate the standard error of the proportion.

σp=37.526737.5267

(Round to four decimal places as needed.)

Part 2

b. What is the probability that

102

or more parents from this sample are "friends" with their children on this online networking site?

P(102

or more parents from this sample are "friends" with their

children)=00

(Round to four decimal places as needed.)

Part 3

c. What is the probability that between

and

104

parents from this sample are "friends" with their children on this online networking site?

P(Between

and

104

parents from this sample are "friends" with their

children)=enter your response here

(Round to four decimal places as needed.)

Part 4

d. If

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?

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.

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.

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.

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.

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