Question
1. Calculate confidence interval estimates for the proportion a. State the confidence interval using the MoE. What does this confidence interval estimate? b. Use the
1. Calculate confidence interval estimates for the proportion a. State the confidence interval using the MoE. What does this confidence interval estimate? b. Use the Confidence Interval template (found in this module's to calculate the confidence interval based on the sample size and the number of successes (the proportion you are interested in). Use a confidence level of 95%. c. What is the calculated confidence interval? How does this compare to the interval in part a using the poll's margin of error?. d. Calculate the sample size needed for the given margin of error and see if the poll had enough people surveyed. Use the sample size template.
Data:
URL for my below work is: https://www.pollingreport.com/enviro.htm.
My poll question is as following:
Quinnipiac University Poll. Jan. 28-Feb. 1, 2021. N=1,075 adults nationwide. Margin of error 3. "Do you support or oppose the Biden administration re-joining the Paris Agreement, a pact reached among countries around the globe to limit climate change by reducing greenhouse gas emissions?" 1/28 - 2/1/21 Support 63% Oppose 33% Unsureo answer 4%
Confidence Interval for Proportion [Number of Success Unknown} Sample Size Confidence Level Proportion of sample 63.90% 2 - score for the left side of the confidence interval -1.95996 2 - score for the right side of the confidence interval 1.95996 Standard Error of the proportion 0.91413 Lower Limit = proportion - standard error*z -score 9.69114 Upper Limit = proportion + standard error*z -score right side 0.65666Step by Step Solution
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