When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published anarticle with this headline: "Majority of Americans Disapprove of Kavanaugh." Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use thenormal distribution as an approximation to the binomial distribution.tcrunch2WSXHandLet p denote the population proportion of all Americans who disapproved of Kavanaugh. Identify the null and alternative hypotheses.Ho: PYH₁: p <(Type integers or decimals. Do not round.)Identify the test statistic.NZ=(Round to two decimal places as needed.)Identify the P-value.P-value=(Round to three decimal places as needed.)State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim.Tech help#380 FSEDс154$RFV%5TGMacBook AirBTAREHBE9YH&7DUTONUJ8M**IKHOLF10command***PF11altoption{[NextF12}]Gdelete1ent-ret When Brett Kavanaugh was nominated to be a Supreme Court justice, a survey of 1127 Americans showed that 50.6% of them disapproved of Kavanaugh. A newspaper published anarticle with this headline: "Majority of Americans Disapprove of Kavanaugh." Use a 0.01 significance level to test the claim made in that headline. Use the P-value method. Use thenormal distribution as an approximation to the binomial distribution.runchWWxHSERHo: PH₁: p <(Type integers or decimals. Do not round.)Identify the test statistic.2=0(Round to two decimal places as needed.)Identify the P-alue.&P-value=(Round to three decimal places as needed.)State the conclusion about the null hypothesis, as well as the final conclusion that addresses the original claim.Tech help#380 F3EDCthe null hypothesis. There$4909RFF4V%5TGsufficient evidence toBMacBook AirYH&7NUBREJ00*8the claim that a majority of Americans disapproved of Kavanaugh.MI(9KHOLcommandF10Palt{option[+Next}delete1

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Answered: When Brett Kavanaugh was nominated to…

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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A study investigating the relationship between age and annual medicalexpenses randomly samples 100 individuals in Davis, California. It is hoped thatthe sample will have a similar mean age as the entire population.a. If the standard deviation of the ages of all individuals in Davis is sd= 15, findthe probability that the mean age of the individuals sampled is within twoyears of the mean age for all individuals in Davis (Hint: Find the samplingdistribution of the sample mean age and use the central limit theorem. Youdon’t have to know the population mean to answer this question.)b. Would the probability be larger, or smaller, if sd= 10? Why?
A Pew Research Center poll asked 1102 teenagers (12- to 17-year-olds) in the United States if they have a cell phone. Of the respondents, 71% said yes. Identify the population, the sample, and the sample statistic. Is the sampling distribution normally distributed? What is the mean and standard deviation of the sampling distribution? Find the cutoff for the highest 0.15% of sample proportions. Find the cutoffs for the middle 95% of sample proportions.
A brewery filling machine is adjusted to fill quart bottles with a mean of 32.0 oz of ale and a variance of 0.003. Periodically, a bottle is checked and the amount of ale is noted. a. Assuming the amount of fill is normally distributed, what is the probability that the next randomly checked bottle contains more than 32.02 oz? b. Let's say you buy 100 quart bottles of this ale for a party; how many bottles would you expect to find containing more than 32.02 oz of ale?
A poll of 2,163 randomly selected adults showed that 91% of them own cell phones. The technology display below results from a test of the claim that 92% of adults own cell phones. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (e) A.) Is the test two-tailed, left-tailed, or right-tailed? B.)What is the test statistic? C.)What is the P-value? D.) What is the null hypothesis and what do you conclude about it? E.) Choose the correct answer below. A. Reject the null hypothesis because the P-value is less than or equal to the significance level, alphaα. B. Fail to rejectFail to reject the null hypothesis because the P-value is greater than the significance level, alphaα. C.Fail to rejectFail to reject the null hypothesis because the P-value is less than or equal to the significance level, alphaα. D.Reject the null hypothesis because the P-value is greater than the significance…
A leading magazine (like Barron's) reported at one time that the average number of weeks an individual is unemployed is 13.3 weeks. Assume that for the population of all unemployed individuals the population mean length of unemployment is 13.3 weeks and that the population standard deviation is 8.5 weeks. Suppose you would like to select a random sample of 198 unemployed individuals for a follow-up study.Find the probability that a single randomly selected value is between 12.3 and 12.9.P(12.3 < X < 12.9) = Find the probability that a sample of size n=198n=198 is randomly selected with a mean between 12.3 and 12.9.P(12.3 < M < 12.9) =
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