Marijuana legalization: In a 2015 Public Policy Institute of California (PPIC) poll, 53% of 1,706 California adult residents surveyed say that marijuana should be legal. Based on the results, the 95% confidence interval is (0.506, 0.554). Which of the following is an appropriate interpretation of this confidence interval? Group of answer choices 1. We are 95% confident that between 50.6% and 55.4% of California residents say that marijuana should be legal. 2. We can conclude that 95% of states have 50.6% to 55.4% of adult residents who say that marijuana should be legal. 3. We are 95% confident that between 50.6% and 55.4% of all American adults say that marijuana should be legal. 4. If we took many samples of adults from around the nation, between 50.6% and 55.4% of them would say that marijuana use should be legal.

Q: In a 2017 survey was conducted on what was the best day of the week.  The result indicated that 90%…

A: Margin of error is given by, And Confidence interval for this study,

Q: Several years ago, 44% of parents who had children in grades K-12 were satisfied with the quality of…

A: The claim is that 44% of parents who had children in grades K-12 were satisfied with the quality of…

Q: joint USA Today/CNN/Gallup Poll in July 2020 indicated that of 832 white adults, 46% thought…

A: Given n=832 P=0.46

Q: Several years ago, 36% of parents who had children in grades K-12 were satisfied with the quality of…

A:

Q: When constructing a confidence interval, if we construct a confidence interval with a 95% confidence…

A: The general formula for the width of the confidence interval is,

Q: In a poll conducted by the Gallup organization in April 2013, 48% of a random sample of 1022 adults…

A: Obtain the 95% confidence interval for the proportion of all U.S. adults in April 2013 who felt that…

Q: As Senior Class President, one of your lifelong duties is overseeing the planning of your high…

A:

Q: Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of…

A: From the provided information, 39% of parents who had children in grades K-12 were satisfied with…

Q: Death penalty: A group claims that the overall feelings of the general population on the death…

A: The objective of this question is to construct a 95% confidence interval for the proportion of…

Q: The General Social Survey asked 1,578 US residents: “Do you think the use of marijuana should be…

A: Parameter: Any statistical measure based on all units in the population is called Parameter.…

Q: Use the technology of your choice to obtain the required Tukey multiple-comparison confidence…

A:

Q: A researcher wanted to check whether the percentage of Canadian adults with obesity has decreased in…

A: Number of Canadian adults in 2005= 75 Number of Canadian adults in 2009 = 120   significance level =…

Q: In a January 2020 survey by Pew Research, a random sample of 1504 adults were asked what they…

A: Introduction: The 100 (1 – α) % confidence interval for the population proportion, p is: Here, n is…

Q: cording to a report in USAToday, more and more parents are helping ndom sample of 40 young adults…

A: The formula to construct confidence interval is, p^±Zα/2*p^(1-p^)n The formula for margin of error…

Q: A telephone poll of 1,000 adult Americans was reported in an issue of a news magazine. One of the…

A: A telephone poll of 1,000 adult Americans was reported in an issue of a news magazine. One of the…

Q: 90% confidence interval is narrower than a 95% confidence interval using the exact same data.…

A: Conditions on confidence interval:   As the confidence level increases, width of the confidence…

Q: A 95% confidence interval is narrower than a 90% confidence interval using the exact same data. O…

A: Confidence interval increases with the increase in confidence level 95% confidence interval is wider…

Q: A health insurance firm wants to estimate the proportion of a population that would receive the flu…

A:

Q: Several years ago, 43% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given  Several years ago, 43% of parents who had children in grades K-12 were satisfied with the…

Q: 3) Prior to the 2013 BCS National Championship Game between Notre Dame and Alabama, a poll asking…

A: 3) The sample proportion of all college students who said Alabama would win is,…

Q: A recent study asked U.S. adults to name 10 historic events that occurred in their lifetime that…

A: We have given that,  Sample proportion (p̂) = 76% = 0.76 and sample size (n) = 2025 Then,  We will…

Q: The researchers found that 53% of the women and 56% of the men believe that the U.S. federal…

A: In order to determine whether the difference between the proportions of women and men who believe…

Q: A few weeks before the 2016 presidential election, the Bloomberg National Politics Poll asked 1006…

A: Given : A few weeks before the 2016 presidential election, the Bloomberg National Politics Poll…

Q: In a recent research poll, 83.4% of 500 randomly selected men in the U. S. knew the name of our…

A: There are two independent samples which are men and women. We have to construct 95% confidence…

Q: A Roper Starch survey asked employees ages 25 to 34 whether they would prefer better health…

A: given data sample size (n) = 500favorable outcomes (x) = 34098% ci p.

Q: An insurance company selected a sample of 100 auto claims filed with it and investigated those…

A:

Q: Several years ago, 44% of parents who had children in grades K-12 were satisfied with the quality of…

A: We have given that 44% of parents who had children in grades K-12 were satisfied with the quality of…

Q: Several years ago, 46% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given information Population proportion p = 0.46 We have given that; a recent poll asked 1,045…

Q: The Minneapolis Star Tribune (August 12, 2008) reported that 73% of Americans believe that Starbucks…

A:

Q: You are going to construct a 99% confidence interval for the proportion of hip replacement…

A:

Q: Several years  ago, 41 % of parents who had children in grades  K-12 were satisfied with the quality…

A: Given,n=1175x=477p^=xnp^=4771175=0.4061-p^=1-0.406=0.594α=1-0.90=0.1α2=0.05Z0.05=1.645

Q: A survey commissioned by the Southern Cross Healthcare Group reported that 16% of New Zealanders…

A: 1.Suppose p is the true population proportion of people, who consume five or more servings of drinks…

Q: Several years ago, 39% of parents who had children in grades K-12 were satisfied with the quality of…

A:

Q: Several years ago, 43% of parents who had children in grades K-12 were satisfied with the quality of…

A:

Q: a large corporation wants create Top management culture finds that only 15% of employees are open to…

A: The company implemented a program to enhance employees' openness to new ideas. Initially, the…

Q: Several years ago, 46% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given  p=0.46, n=1055, X=488

Q: Several years ago, 48% of parents who had children in grades K-12 were satisfied with the quality of…

A: Given : n = 1035 X = 497

Q: The Vegetarian Resource Group commissioned Harris Poll in 2016 to conduct a nationally…

A: The random variable vegetarian follows binomial distribution. X ~ B (n, p) => X ~ B (2015,…

Q: Gay marriage. In May 2012, a CNN/ORC Poll asked arandom sample of 1009 U.S. adults this question:Do…

A:

Q: In a survey on downloading music, a poll asked 714 Internet users if they "ever downloaded music…

A:

Q: s. Rains believes more seniors from PLD plan to a niors at Lafayette. In a random sample of 35 PLD…

A: The formula for computing sample proportions is,  The confidence interval for the difference in…

Q: indicated that they were satisfied. Construct a 99% confidence interval to assess whether this…

A: here given , Several years ago, 35% of parents who had children in grades K-12 were satisfied with…