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 doing about the right amount to protect the environment.
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In 2015 as part of the General Social Survey, 1361 randomly
selected American adults responded to...
In a recent survey of 10,300 randomly-selected U.S.adults,1,854 responded that they “the most common way I...
In a recent survey of 10,300 randomly-selected U.S.adults,1,854 responded that they “the most common way I get my political and election news is through social media.” (a) Calculate a point estimate for the proportion of all U.S. adults who primarily get their political news through social media. (b) Calculate a 98% confidence interval for the proportion of all U.S. adults who primarily get their political news through social media. (c) State the results of your calculation in a complete sentence...
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2. Proper ASW conducted a survey to learn about American adults attitudes toward money and happiness....
2. Proper ASW conducted a survey to learn about American adults attitudes toward money and happiness. Fifty-six percent of the respondents said that they balance their checkbook at least once a month. Suppose a sample of 400 American adults were taken. a. Describe the sampling distribution of the sample proportion. (3 pts) Shape: Mean: Standard deviation: b. What is the probability that the sample proportion of adults who balance their checkbook at least once a month will be greater than...
The 2004 General Social Survey found that 1052 from a random sample of 1334 American adults...
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In 2012, the General Social Survey asked a random sample of adults, "Compared to most people, how...
In 2012, the General Social Survey asked a random sample of adults, "Compared to most people, how informed are you about politics?" Suppose that the following are the data classified by their responses to this question and their age group (the data has been modified slightly for testing purposes) Not at Al A Little 30 29 26 59 Extremely Somewhat Very 13 24 25 78 28 Age 20-29 Age 30-39 Age 40-49 Age 50 or older 16 49 20 120...
Required information The General Social Survey asked a sample of adults how many siblings (brothers and...
Required information The General Social Survey asked a sample of adults how many siblings (brothers and sisters) they had () and also how many children they had (Y). We show results for those who had no more than 4 children and no more than 4 siblings. Assume that the joint probability mass function is given in the following contingency table: 0.03 0.09 0.07 0.06 0.04 0.01 0.05 0.05 0.04 0.03 2 0.02 0.08 0.07 0.09 0.04 0.01 0.03 0.04 0.04...
In 2012, the General Social Survey asked a random sample of adults, "Compared to most people,...
In 2012, the General Social Survey asked a random sample of adults, "Compared to most people, how informed are you about politics?" Suppose that the following are the data classified by their responses to this question and their age group (the data has been modified slightly for testing purposes): Not at All A Little Somewhat Very Extremely Age 20-29 9 28 28 12 0 Age 30-39 15 28 55 23 8 Age 40-49 2 26 50 26 15 Age 50...
A survey of 1 comma 567 randomly selected adults showed that 570 of them have heard...
A survey of 1 comma 567 randomly selected adults showed that 570 of them have heard of a new electronic reader. The accompanying technology display results from a test of the claim that 38% of adults have heard of the new electronic reader. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.05 significance level to complete parts (a) through (d. Sample proportion: 0.363752 Test statistic, z: negative 1.3251 Critical z: plus or minus1.9600 P-Value:...
For the 2015 General Social Survey, a comparison of females and males on the number of...
For the 2015 General Social Survey, a comparison of females and males on the number of hours a day that the subject watched TV gave the following results. Group Females 510 3.10 Males 396 2.90 (a) Set up the hypotheses of a significance test to analyze whether the population means differ for females and males. Ho: -Select 2 H: --Select-- 12 (b) Conduct all parts of the significance test if df - 509 and standard error = 0.163. Interpret the...
A survey of 1,680 randomly selected adults showed that 549 of them have heard of a...
A survey of 1,680 randomly selected adults showed that 549 of them have heard of a new electronic reader. The accompanying technology display results from a test of the claim that 37% of adults have heard of the new electronic reader. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts a through e Sample proportion: 0.326786 Test statistic Critical z: P-Value z:-3.6687 ± 2.5758 0.0002 a. Is the test...
2. Proper ASW conducted a survey to learn about American adults attitudes toward money and happiness. Fifty-six percent of the respondents said that they balance their checkbook at least once a month. Suppose a sample of 400 American adults were taken. a. Describe the sampling distribution of the sample proportion. (3 pts) Shape: Mean: Standard deviation: b. What is the probability that the sample proportion of adults who balance their checkbook at least once a month will be greater than...
The 2004 General Social Survey found that 1052 from a random sample of 1334 American adults daimed to have made a financial contribution to charity in the previous year. Round your answers to three decimal places, required. a Find a 95 96 confidence interval for the proportion of all American households that made a financial contribution to charity in the previous year b. Repeat part a with a 99% confidence interval. c. Based on these confidence intervals, without carrying out...
In 2012, the General Social Survey asked a random sample of adults, "Compared to most people, how informed are you about politics?" Suppose that the following are the data classified by their responses to this question and their age group (the data has been modified slightly for testing purposes) Not at Al A Little 30 29 26 59 Extremely Somewhat Very 13 24 25 78 28 Age 20-29 Age 30-39 Age 40-49 Age 50 or older 16 49 20 120...
Required information The General Social Survey asked a sample of adults how many siblings (brothers and sisters) they had () and also how many children they had (Y). We show results for those who had no more than 4 children and no more than 4 siblings. Assume that the joint probability mass function is given in the following contingency table: 0.03 0.09 0.07 0.06 0.04 0.01 0.05 0.05 0.04 0.03 2 0.02 0.08 0.07 0.09 0.04 0.01 0.03 0.04 0.04...
For the 2015 General Social Survey, a comparison of females and males on the number of hours a day that the subject watched TV gave the following results. Group Females 510 3.10 Males 396 2.90 (a) Set up the hypotheses of a significance test to analyze whether the population means differ for females and males. Ho: -Select 2 H: --Select-- 12 (b) Conduct all parts of the significance test if df - 509 and standard error = 0.163. Interpret the...
A survey of 1,680 randomly selected adults showed that 549 of them have heard of a new electronic reader. The accompanying technology display results from a test of the claim that 37% of adults have heard of the new electronic reader. Use the normal distribution as an approximation to the binomial distribution, and assume a 0.01 significance level to complete parts a through e Sample proportion: 0.326786 Test statistic Critical z: P-Value z:-3.6687 ± 2.5758 0.0002 a. Is the test...
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