Greg wants to estimate the percentage of people who lease a car. He surveys 340 individuals and finds that 90 lease a car.Find the confidence interval for the population proportion with a 95% confidence level.20.10 20.05 20.025 20.01 20.0051.282 1.645 1.960 2.326 2.576Use the table of common z-scores above.• Round the final answer to three decimal places.Provide your answer below:

To find the confidence interval for the population proportion with a 95% confidence level, we need…

Answered: Greg wants to estimate the percentage…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Please answer within 30min thanks.
Janet wants to estimate the percentage of people who have been required to take a drug test for work. She surveys 250 individuals and finds that 175 have taken a drug test for work. Identify the values needed to calculate a confidence interval at the 98% confidence level. Then use Excel to find the confidence interval. Round the final answer to three decimal places. Provide your answer below:
In a survey of 2074 adults in a recent year, 744 made a New Year's resolution to eat healthier. Construct 90% and 95% confidence intervals for the population proportion. Interpret the results and compare the widths of the confidence The 90% confidence interval for the population proportion p is D. (Round to three decimal places as needed.)
Tina catches a 14-pound bass. She does not know the population mean or standard deviation. So she takes a sample of five friends and they say the last bass they caught was 9, 12, 13, 10, and 10 pounds. Find the t and calculate a 95% (α = .05) confidence interval.
A random sample of 12 cats was collected to study the lifespan with the data listed below. Find the 87% confidence interval for the population mean. Round all values to two decimals. 13, 15, 18, 16, 8, 12, 13, 15, 8, 13, 12, 11. Provide your answer below.
I think the answer to this last part is C
We wish to estimate what percent of adult residents in a certain county are parents. Out of 400 adult residents sampled, 356 had kids. Based on this, construct a 95% confidence interval for the proportion, p, of adult residents who are parents in this county.Give your answers as decimals, to three places. ______ < p < _______
Please answer within 30min thanks. n = 29 for the 90% confidence interval for the mean.
Explain also how you use Z table ..
For the same sample statistics, which level of confidence would produce the widest confidence interval? Explain your reasoning. Choose the correct answer below. 99%, because as the level of confidence increases, ze decreases. 99%, because as the level of confidence increases, Z increases. O 90%, because as the level of confidence decreases, ze increases. 90%, because as the level of confidence decreases, Zc decreases.
need help!
Use the information below to answer Questions #19 and #20. In a survey of 2327 adults, 726 say they believe in UFOS. Construct a 90% confidence interval for the population proportion of adults who believe in UFOS. Find the left end point for a 90% confidence interval. Round to three decimal places as needed.

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