Question

According to the most recent poll result by Gallup Institute, published on July 23, 2021, “President Joe Biden’s latest job approval rating of 50% is down from 56% in June.” These results are based on, “telephone interviews conducted July 6–21, 2021, with a random sample of 1,007 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia.” (4a) Estimate the 99% confidence interval of Joe Biden’s approval rating. Justify all steps both algebraically and graphically. (10 points for the algebra and 5 points for the graph)

Name: according to the most recent poll result by gallup institute published on july 23 2021 president joe bidens latest job approval rating of 50 is down from 56 in june these results are based on telephon
Uploaded: 2023-08-11T05:28:17-08:00
Duration: 8 min 5 s
Channel: Rabia Sarwar
Description: according to the most recent poll result by gallup institute published on july 23 2021 president joe bidens latest job approval rating of 50 is down from 56 in june these results are based on telephon

          According to the most recent poll result by Gallup Institute, published on July 23, 2021,
“President Joe Biden’s latest job approval rating of 50% is down from 56% in June.” These
results are based on, “telephone interviews conducted July 6–21, 2021, with a random sample
of 1,007 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia.”
(4a) Estimate the 99% confidence interval of Joe Biden’s approval rating. Justify all steps
both algebraically and graphically. (10 points for the algebra and 5 points for the graph)

Added by Adriana B.

Stats Data and Models

Richard D. De Veaux, Paul F. Velleman,… 4th Edition

Chapter 21

Instant Answer

Solved by Expert Rabia Sarwar

08/11/2023

Step 1

Since we are trying to estimate a population proportion, we choose the sample proportion (p) as the sample statistic. According to the Gallup poll, p = 0.50. Show more…

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According to the most recent poll result by Gallup Institute, published on July 23, 2021, “President Joe Biden’s latest job approval rating of 50% is down from 56% in June.” These results are based on, “telephone interviews conducted July 6–21, 2021, with a random sample of 1,007 adults, aged 18 and older, living in all 50 U.S. states and the District of Columbia.” (4a) Estimate the 99% confidence interval of Joe Biden’s approval rating. Justify all steps both algebraically and graphically. (10 points for the algebra and 5 points for the graph)