Question

Find the confidence interval with a 90% level of confidence. In October 2010, Gallup Poll asked 510 randomly sampled adults the question, "Generally speaking, do you believe the death penalty is applied fairly or unfairly in this country today?" Of these, 58% answered "fairly", 36% said "unfairly" and 7% said they didn't know. (Percentages round up to 101% due to rounding) What percent of the population would consider the death penalty to be "fair"?

Name: find the confidence interval with a 90 level of confidence in october 2010 gallup poll asked 510 randomly sampled adults the question generally speaking do you believe the death penalty is a 66942
Uploaded: 2023-08-04T03:28:36-08:00
Duration: 2 min 41 s
Channel: Jerelyn Nevil
Description: find the confidence interval with a 90 level of confidence in october 2010 gallup poll asked 510 randomly sampled adults the question generally speaking do you believe the death penalty is a 66942

          Find the confidence interval with a 90% level of confidence.   In October 2010, Gallup Poll asked 510 randomly sampled adults the question, "Generally speaking, do you believe the death penalty is applied fairly or unfairly in this country today?" Of these, 58% answered "fairly", 36% said "unfairly" and 7% said they didn't know. (Percentages round up to 101% due to rounding) What percent of the population would consider the death penalty to be "fair"?

Added by Ruben S.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Jerelyn Nevil

08/04/2023

Step 1

First, we need to find the standard deviation of the sample proportion. The formula for the standard deviation of a sample proportion is: $$\sigma_p = \sqrt{\frac{p(1-p)}{n}}$$ where $p$ is the sample proportion and $n$ is the sample size. Show more…

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Find the confidence interval with a 90% level of confidence. In October 2010, Gallup Poll asked 510 randomly sampled adults the question, "Generally speaking, do you believe the death penalty is applied fairly or unfairly in this country today?" Of these, 58% answered "fairly", 36% said "unfairly" and 7% said they didn't know. (Percentages round up to 101% due to rounding) What percent of the population would consider the death penalty to be "fair"?