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2. Solar Power: In a survey of 1022 U.S. adults, 779 think that the United States should put more emphasis on producing domestic energy from solar power. Construct a 99% confidence interval for the proportion of U.S. adults, who think that the United States should put more emphasis on producing domestic energy from solar power. (Adapted from Gallup Poll) (a) Find the point estimate. (b) Find the critical value. (c) Find the standard error.

2. Solar Power: In a survey of 1022 U.S. adults, 779 think that the United States should put more emphasis on producing domestic energy from solar power. Construct a 99% confidence interval for the proportion of U.S. adults, who think that the United States should put more emphasis on producing domestic energy from solar power. (Adapted from Gallup Poll) (a) Find the point estimate. (b) Find the critical value. (c) Find the standard error.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Steps for constructing a confidence interval

2. Solar Power: In a survey of 1022 U.S. adults, 779 think that the United States should put more emphasis on producing domestic energy from solar power. Construct a 99% confidence interval for the proportion of U.S. adults, who think that the United States should put more emphasis on producing domestic energy from solar power. (Adapted from Gallup Poll) (a) Find the point estimate. (b) Find the critical value. (c) Find the standard error. (d) Find the margin of error. (e) List the confidence interval. (f) Interpret the confidence interval. Steps for Constructing a Confidence Interval 1. Find the point estimate. 2. Find the critical value using the calculator. 3. Find the standard error and multiply it by the critical value to obtain the margin of error. 4. Construct the confidence interval: point estimate + margin of error 5. Interpret the confidence interval using wording and units from the problem: "We % confident that the true is between (insert units). are and
Transcribed Image Text:2. Solar Power: In a survey of 1022 U.S. adults, 779 think that the United States should put more emphasis on producing domestic energy from solar power. Construct a 99% confidence interval for the proportion of U.S. adults, who think that the United States should put more emphasis on producing domestic energy from solar power. (Adapted from Gallup Poll) (a) Find the point estimate. (b) Find the critical value. (c) Find the standard error. (d) Find the margin of error. (e) List the confidence interval. (f) Interpret the confidence interval. Steps for Constructing a Confidence Interval 1. Find the point estimate. 2. Find the critical value using the calculator. 3. Find the standard error and multiply it by the critical value to obtain the margin of error. 4. Construct the confidence interval: point estimate + margin of error 5. Interpret the confidence interval using wording and units from the problem: "We % confident that the true is between (insert units). are and
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