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Confidence in banks: A news poll conducted in 2012 asked a random sample of 1358 adults...
I need help answering this question Confidence in banks: A news poll conducted in 2012 asked...
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Confidence in banks: A news poll conducted in 2012 asked a random sample of 1268 adults in the United States how much confidence they had in banks and other financial institutions. A total of 144 adults said that they had a great deal of confidence. An economist claims that less than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both...
25. A 2012 Gallup poll asked a random sample of 120 American adults whether they thought...
25. A 2012 Gallup poll asked a random sample of 120 American adults whether they thought the news media exaggerate the seriousness of global warming. The proportion who responded "No" was 59.2%. Is this good evidence that majority of American adults do not believe the news media exaggerate the seriousness of the global warning? a) Set up appropriate null and alternative hypothesis to answer the above question b) Calculate the value of the test statistic. c) Is the data significant...
A CBS News poll conducted June 10 and 11,2006, among a nationwide random sample of 651...
A CBS News poll conducted June 10 and 11,2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below better same worse Republican Democrat none 38 104 12 21 137 118 87 90 Express your answers as a decimal and round to the nearest 0.001...
A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of...
A CBS News poll conducted June 10 and 11, 2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below. better same worse Republican 38 104 44 Democrat 12 87 137 none 21 90 118 Express your answers as a decimal and round to the...
13. In a recent ABC News/Washington Post Poll conducted on November 16 through 19, a random...
13. In a recent ABC News/Washington Post Poll conducted on November 16 through 19, a random sample port or oppose the United States taking in refugees from the of 1004 Americans was asked "Do you sup conflicts in Syria and other Mideast countries after screening them for security?" Five hundred and forty two said they opposed. a. Find a 95% confidence interval for the true proportion of all American who oppose. Clearly show all calculator input. (5 points) Sample pop...
An ABC News/Washington Post poll conducted March 3-6, 2016 asked, "Would you support or oppose an...
An ABC News/Washington Post poll conducted March 3-6, 2016 asked, "Would you support or oppose an effort made by the federal government to deport all 11 million undocumented immigrants and send them back to their home countries?" 36% of respondents said "Support." You wonder whether this percentage is actually higher, after the recent debate coverage of this issue. The following hypotheses were used: Hop50 36 H:p>0.36 If a Type Il error was made when performing the test, what happened? (Select...
Watching TV: In 2012, the General Social Survey asked a sample of 1330 people how much...
Watching TV: In 2012, the General Social Survey asked a sample of 1330 people how much time they spent watching TV each day. The mean number of hours was 3.05 with a standard deviation of 2.70. A sociologist claims that people watch a mean of 3 hours of TV per day. Do the data provide sufficient evidence to conclude that the mean hours of TV watched per day is more than the claim? Use the a=0.10 level of significance and...
Watching TV: In 2012, the General Social Survey asked a sample of 1326 people how much...
Watching TV: In 2012, the General Social Survey asked a sample of 1326 people how much time they spent watching TV each day. The mean number of hours was 3.02 with a standard deviation of 2.64. A sociologist claims that people watch a mean of 3 hours of TV per day. Do the data provide sufficient evidence to conclude that the mean hours of TV watched per day differs from the claim? Use the a=0.01 level of significance and the...
Suppose a poll of adults asked, "Have you ever driven a car when you probably had...
Suppose a poll of adults asked, "Have you ever driven a car when you probably had too much alcohol to drive safely?" of the 300 men who answered, 186 (62%) said yes and 111 (37%) said no. The remaining three weren't sure. Of the 300 women, 84 (28%) said yes while 213 (71%) said no, and the remaining three weren't sure. (You may need to use a calculator. Round your answers to two decimal places.) (a) Ignoring those who said...
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 samp
1. 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. a). Would it be appropriate to use the normal distribution to construct the confidence interval in this situation? Explain briefly. b). The standard error from the bootstrap distribution is SE = 0.016. Use the normal distribution...
I need help answering this
question
Confidence in banks: A news poll conducted in 2012 asked a random sample of 1268 adults in the United States how much confidence they had in banks and other financial institutions. A total of 144 adults said that they had a great deal of confidence. An economist claims that less than 11% of U.S. adults have a great deal of confidence in banks. Can you conclude that the economist's claim is true? Use both...
25. A 2012 Gallup poll asked a random sample of 120 American adults whether they thought the news media exaggerate the seriousness of global warming. The proportion who responded "No" was 59.2%. Is this good evidence that majority of American adults do not believe the news media exaggerate the seriousness of the global warning? a) Set up appropriate null and alternative hypothesis to answer the above question b) Calculate the value of the test statistic. c) Is the data significant...
A CBS News poll conducted June 10 and 11,2006, among a nationwide random sample of 651 adults, asked those adults about their party affiliation (Democrat, Republican or none) and their opinion of how the US economy was changing ("getting better," "getting worse" or "about the same"). The results are shown in the table below better same worse Republican Democrat none 38 104 12 21 137 118 87 90 Express your answers as a decimal and round to the nearest 0.001...
13. In a recent ABC News/Washington Post Poll conducted on November 16 through 19, a random sample port or oppose the United States taking in refugees from the of 1004 Americans was asked "Do you sup conflicts in Syria and other Mideast countries after screening them for security?" Five hundred and forty two said they opposed. a. Find a 95% confidence interval for the true proportion of all American who oppose. Clearly show all calculator input. (5 points) Sample pop...
An ABC News/Washington Post poll conducted March 3-6, 2016 asked, "Would you support or oppose an effort made by the federal government to deport all 11 million undocumented immigrants and send them back to their home countries?" 36% of respondents said "Support." You wonder whether this percentage is actually higher, after the recent debate coverage of this issue. The following hypotheses were used: Hop50 36 H:p>0.36 If a Type Il error was made when performing the test, what happened? (Select...
Watching TV: In 2012, the General Social Survey asked a sample of 1330 people how much time they spent watching TV each day. The mean number of hours was 3.05 with a standard deviation of 2.70. A sociologist claims that people watch a mean of 3 hours of TV per day. Do the data provide sufficient evidence to conclude that the mean hours of TV watched per day is more than the claim? Use the a=0.10 level of significance and...
Watching TV: In 2012, the General Social Survey asked a sample of 1326 people how much time they spent watching TV each day. The mean number of hours was 3.02 with a standard deviation of 2.64. A sociologist claims that people watch a mean of 3 hours of TV per day. Do the data provide sufficient evidence to conclude that the mean hours of TV watched per day differs from the claim? Use the a=0.01 level of significance and the...
Suppose a poll of adults asked, "Have you ever driven a car when you probably had too much alcohol to drive safely?" of the 300 men who answered, 186 (62%) said yes and 111 (37%) said no. The remaining three weren't sure. Of the 300 women, 84 (28%) said yes while 213 (71%) said no, and the remaining three weren't sure. (You may need to use a calculator. Round your answers to two decimal places.) (a) Ignoring those who said...
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