image below. The student could not explain why he did not see about 90 of the confidence intervals capturing the population proportion of 0.24. Please select the answer choice that provides the best explanation to this student.Confidence intervals for P. p=0.24, Type Standard-WaldA statistics student ran StatCrunch's confidence interval applet for a proportion with a population proportion of 0.24, a 90% confidence level, and a sample size of 12. The results of 100 simulated confidence intervals appear in theSample size=12CI Level Contalning p Total Proportion770.91000.77O a. It is impossible to use a population proportion even when using simulations to illustrate major concepts.O b. Although 77 intervals capturing p is less than 90, the difference was simply due to chance.O. The Central Limit Theorem condition of np 2 10 and/or n(1 - p) > 10 does not hold.O d. The 100 confidence intervals were not generated randomly.

Given: Number of trials (n)=12Probability of success (p)=0.24

Answered: image below. The student could not…

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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In a recent Zogby International Poll, nine of 48 respondents rated the likelihood of a terrorist attack in their community as “likely” or “very likely”. Use the “plus four” method to create a 98% confidence interval for the proportion of American adults who believe that a terrorist attack in their community is likely or very likely. Interpret your confidence interval.
A 95% confidence interval is constructed in order to estimate the proportion of adults who own an iPhone. The resulting interval has a margin of error of 0.043. Which of the following would be the margin of error for a 90% confidence interval based on the same sample of data?
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) For each problem below, Decide whether it describes a confidence interval for a proportion or a confidence interval for a mean. Apply the correct formula to calculate the confidence interval in the format of an estimate + margin of error. During the 2016 season, Mark Williams played in 18 golf matches and used his driver club 126 times, hitting his drives an average of 278 yards per drive, with a standard deviation of 15 yards per drive. Calculate a 95% confidence interval for the distance he was able to hit his driver club in that season.
If n=520 and p (p-hat) 0.8, construct a 90% confidence interval. Give your answers to three decimals. Question Help: D Video D Post to forum Submit Question 身

Suppose the English department of a local university has a total of 105 faculty members. Of this number, 24 (about 23%) are part-time instructors. Is it appropriate to find a confidence interval for the percentage of part-time instructors in the department? Find a 95% confidence interval or explain why you should not find a confidence interval for the percentage of part-time instructors in the English department.
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A recent survey of 1,000 people found that 90% of Americans support background checks for purchasing guns. Construct a 95 % confidence interval for the population proportion.
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A surprising fact indicates that a small proportion of teens use a password on their mobile device. A poll chooses a simple random sample of 120 teens and asks if they use a password on their mobile device. The results showed that 56 of teens in our sample used a password on their mobile device. Find a 90 % confidence interval for the proportion of teens who use a password on their mobile device. Interpret your confidence interval.

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