Question

In a sample, we have n=450 and p? = 0.15. Use the normal distribution to find a 95% confidence interval for the population proportion p. Please round your answers to three decimal places. The 95% confidence interval is 0.120 to 0.180. The 95% confidence interval is 0.117 to 0.183. The 95% confidence interval is 0.135 to 0.165. The 95% confidence interval is 0.113 to 0.187.

          In a sample, we have n=450 and p? = 0.15.
Use the normal distribution to find a 95% confidence interval for the population proportion p.
Please round your answers to three decimal places.
The 95% confidence interval is 0.120 to 0.180.
The 95% confidence interval is 0.117 to 0.183.
The 95% confidence interval is 0.135 to 0.165.
The 95% confidence interval is 0.113 to 0.187.

In a sample, we have n=450 and p? = 0.15.
Use the normal distribution to find a 95% confidence interval for the population proportion p.
Please round your answers to three decimal places.
The 95% confidence interval is 0.120 to 0.180.
The 95% confidence interval is 0.117 to 0.183.
The 95% confidence interval is 0.135 to 0.165.
The 95% confidence interval is 0.113 to 0.187.

Added by Courtney F.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

Instant Answer

Solved by Expert Joanna Quigley

08/08/2023

Step 1

The formula for the standard error of the sample proportion is: SE = sqrt(p*(1-p)/n) where p is the sample proportion and n is the sample size. In this case, p = 0.15 and n = 450, so: SE = sqrt(0.15*(1-0.15)/450) = 0.022 Show more…

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In a sample, we have n=450 and p = 0.15. Use the normal distribution to find a 95% confidence interval for the population proportion p. Please round your answers to three decimal places. The 95% confidence interval is 0.120 to 0.180. The 95% confidence interval is 0.117 to 0.183. The 95% confidence interval is 0.135 to 0.165. The 95% confidence interval is 0.113 to 0.187.