10. Calculate the interval. Write the formula with the correct values inserted. * I ME (0.4162 11. Interpret the interval in the context of the problem.
10. Calculate the interval. Write the formula with the correct values inserted. * I ME (0.4162 11. Interpret the interval in the context of the problem.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.2: Representing Data
Problem 24PFA
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Question
Help with 10 and 11 please!
Transcribed Image Text:*
Questions 7-11: Use the following scenario to answer the questions that follow.
The U.S. Centers for Disease Control conducts the National Youth Tobacco Survey each year.
The preliminary results of 2019 show that e-cigarette use is up among US teens while cigarette
use is down. In a sample of 1600 teens, 120 reported smoking a cigarette in the last 30 days.
Estimate at 95% confidence the proportion of all US teens who smoke cigarettes.
7. Find the value of z or t, whichever is appropriate. Sketch the appropriate bell curve.
211.96
-025
991-
-1-96
1.96
8. Calculate the standard error. Write the formula with the correct values inserted.
SE=√(1-P)
120
= 0.075
SE=0.0066
n
SE= √(1-6)
0.075 (1-0.075
1600
9. Calculate the margin of error. Write the formula with the correct values inserted.
2 X SE
1.96 X 0.0066
0.012936
10. Calculate the interval. Write the formula with the correct values inserted.
(0.0162,
1600
* 11. Interpret the interval in the context of the problem.
0.00724
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