1. In a Roper survey of 1,998 randomly selected adults, 24% included loud commercials among the...
1. In a Roper survey of 1,998 randomly selected adults, 24% included loud commercials among the annoying aspects of television. Construct the 92% confidence interval for the proportion of adults who are annoyed by loud commercials.
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1. In a Roper survey of 1,998 randomly selected adults, 24%
included loud commercials among the...
6.24 In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of...
6.24 In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of them use the Internet regularly. Of the Internet users, 1054 use a social networking site. Find and interpret a 95% confidence interval for each of the following proportions: a) Proportion of US adults who use the internet regularly. b) Proportion of US adult Internet users who use a social networking site. c) Proportion of all US adults who use a social networking site. Use...
In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over),...
In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over), 53% said that they were dissatisfied with the quality of education students receive in kindergarten through grade 12_The bootstrap distribution (based on 5,000 samples) is provided. 150 samples = 3000 mean = 0.529 st. des: -0.016 L abello 0.48 0.50 0.52 0.54 0.56 0.58 0.529 a. Would it be appropriate to use the normal distribution to construct the confidence interval in this situation? Explain...
1. The Pew Research Center conducted a survey of 897 adults and found that 76% of...
1. The Pew Research Center conducted a survey of 897 adults and found that 76% of them are aware of Instagram. Construct a 93% confidence interval estimate of the proportion of adults who are aware of Instagram. What is the lower bound of the confidence interval? (Round to the nearest thousandth.) Enter answer 2. The Pew Research Center wishes to estimate the proportion of adults who are aware of Instagram. Assume that a recent Instagram publication indicates that 69% of...
A Gallup survey of 1,001 randomly selected U.S. adults conducted May 2011, asked “In your opinion,...
A Gallup survey of 1,001 randomly selected U.S. adults conducted May 2011, asked “In your opinion, which one of the following is the main reason why students get education beyond high school?” Fifty three percent chose “to earn more money.” Based on these data, I found the 95% confidence interval for the proportion of U.S. adults who choose “to earn more money” to be (0.499, 0.561). Explain in at least 1 sentence. TRUE/FALSE? Ninety-five percent of all U.S. adults are...
In 2015 as part of the General Social Survey, 1361 randomly selected American adults responded to...
In 2015 as part of the General Social Survey, 1361 randomly selected American adults responded to this question: “Some countries are doing more to protect the environment than other countries. In general, do you think that America is doing more than enough, about the right amount, or too little?” Of the respondents, 440 replied that America is doing about the right amount. What is the 95% confidence interval for the proportion of all American adults who feel that America is...
Question 2: A survey of 800 randomly selected senior citizens showed that 55% said they planned...
Question 2: A survey of 800 randomly selected senior citizens showed that 55% said they planned to watch the upcoming town hall debate on television. The margin of error for the 95% confidence interval is 3.5 percentage points. Part 1 (calculation) Write down the 95% confidence interval for the proportion of all senior citizens who plan to watch the upcoming debate on television. Be sure to show your work. Part 2 (interpretation) Does the confidence interval support the claim that...
6. [20 Points) In a poll, 202 of 1010 randomly selected adults aged 18 or older...
6. [20 Points) In a poll, 202 of 1010 randomly selected adults aged 18 or older stated that they believe there is too little spending on national defense. Use this information to complete parts (a) through (c) below 2. Obtain a point estimate for the proportion of adults aged 18 or older who feel there is too little spending on national defense. b. Construct a 90% confidence interval for the proportion of adults aged 18 or older who believe there...
6. [20 Points in a poll, 202 of 1010 randomly selected adults aged 18 or older...
6. [20 Points in a poll, 202 of 1010 randomly selected adults aged 18 or older stated that they believe there is too little spending on national defense. Use this information to complete parts(a) through (c) below a. Obtain a point estimate for the proportion of adults aged 18 or older who feel there is too little spending on national defense Construct a 9% confidence interval for the proportion of adults aged 18 or older who believe there is too...
Of 92 adults selected randomly from one town, 61 have health insurance. Find a 90% confidence...
Of 92 adults selected randomly from one town, 61 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance. 0.566 < p < 0.760 0.548 < p < 0.778 0.536 < p < 0.790 0.582 < p < 0.744
of 146 adults selected randomly from one town, 25 of them smoke. Construct a 99% confidence...
of 146 adults selected randomly from one town, 25 of them
smoke. Construct a 99% confidence interval for the true percentage
of all adults in the town that smoke.
Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Points: 5 5) Of 146 adults selected randomly from one town, 25 of them smoke. Construct a 99% confidence interval for the true percentage of all adults in the town that smoke....
6.24 In a survey of 2255 randomly selected US adults (age 18 or older), 1787 of them use the Internet regularly. Of the Internet users, 1054 use a social networking site. Find and interpret a 95% confidence interval for each of the following proportions: a) Proportion of US adults who use the internet regularly. b) Proportion of US adult Internet users who use a social networking site. c) Proportion of all US adults who use a social networking site. Use...
In an August 2012 Gallup survey of 1,012 randomly selected U.S. adults (age 18 and over), 53% said that they were dissatisfied with the quality of education students receive in kindergarten through grade 12_The bootstrap distribution (based on 5,000 samples) is provided. 150 samples = 3000 mean = 0.529 st. des: -0.016 L abello 0.48 0.50 0.52 0.54 0.56 0.58 0.529 a. Would it be appropriate to use the normal distribution to construct the confidence interval in this situation? Explain...
1. The Pew Research Center conducted a survey of 897 adults and found that 76% of them are aware of Instagram. Construct a 93% confidence interval estimate of the proportion of adults who are aware of Instagram. What is the lower bound of the confidence interval? (Round to the nearest thousandth.) Enter answer 2. The Pew Research Center wishes to estimate the proportion of adults who are aware of Instagram. Assume that a recent Instagram publication indicates that 69% of...
6. [20 Points) In a poll, 202 of 1010 randomly selected adults aged 18 or older stated that they believe there is too little spending on national defense. Use this information to complete parts (a) through (c) below 2. Obtain a point estimate for the proportion of adults aged 18 or older who feel there is too little spending on national defense. b. Construct a 90% confidence interval for the proportion of adults aged 18 or older who believe there...
6. [20 Points in a poll, 202 of 1010 randomly selected adults aged 18 or older stated that they believe there is too little spending on national defense. Use this information to complete parts(a) through (c) below a. Obtain a point estimate for the proportion of adults aged 18 or older who feel there is too little spending on national defense Construct a 9% confidence interval for the proportion of adults aged 18 or older who believe there is too...
Of 92 adults selected randomly from one town, 61 have health insurance. Find a 90% confidence interval for the true proportion of all adults in the town who have health insurance. 0.566 < p < 0.760 0.548 < p < 0.778 0.536 < p < 0.790 0.582 < p < 0.744
of 146 adults selected randomly from one town, 25 of them
smoke. Construct a 99% confidence interval for the true percentage
of all adults in the town that smoke.
Use the given degree of confidence and sample data to construct a confidence interval for the population proportion p. Points: 5 5) Of 146 adults selected randomly from one town, 25 of them smoke. Construct a 99% confidence interval for the true percentage of all adults in the town that smoke....
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