Smart phone: Among 253 cell phone owners aged 18-24 surveyed, 110 said their phone was an Android phone. Perform the following. Part 1 of 3 (a) Find a point estimate for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal places. The point estimate for the proportion of cell phone owners aged 18 - 24 who have an Android phone is $0. Part 2 of 3 5 (b) Construct a 99.9% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal places. A 99.9% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone is 0

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter1: Expressions And Functions
Section1.5: Descriptive Modeling And Accuracy
Problem 11PPS
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100%

Part 3. Assume that an advertisement claimed 32% of cellphone owners aged 18-24 have an android phone. Does the confidence interval contradict this claim? 
the confidence interval (a) does (b) does not contradict the claim because 0.32 (a)is (b) is not contained in the conf

Smart phone: Among 253 cell phone owners aged 18-24 surveyed, 110 said their phone was an Android phone.
Perform the following.
Part 1 of 3
(a) Find a point estimate for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal
places.
The point estimate for the proportion of cell phone owners aged 18 - 24 who have an Android phone is
TI
Part 2 of 3
e here to search
(b) Construct a 99.9% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least
three decimal places.
Continue
X
A 99.9% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone is
0<P<0
< p <
X
5
4
ALL
Submit Assignment
© 2022 Mcdraw Hilll LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibly
MW
68°F
Transcribed Image Text:Smart phone: Among 253 cell phone owners aged 18-24 surveyed, 110 said their phone was an Android phone. Perform the following. Part 1 of 3 (a) Find a point estimate for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal places. The point estimate for the proportion of cell phone owners aged 18 - 24 who have an Android phone is TI Part 2 of 3 e here to search (b) Construct a 99.9% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone. Round the answer to at least three decimal places. Continue X A 99.9% confidence interval for the proportion of cell phone owners aged 18-24 who have an Android phone is 0<P<0 < p < X 5 4 ALL Submit Assignment © 2022 Mcdraw Hilll LLC. All Rights Reserved. Terms of Use Privacy Center | Accessibly MW 68°F
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