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A Pew research Poll Echind that Hay. Of goc teens, Sampled at random, admitted to misrepresenting...
19. When calculating a confidence interval, keeping the sample size the same but decreasing the confidence level, will a. decrease the width of the confidence interval b. decrease the margin of error...
19. When calculating a confidence interval, keeping the sample size the same but decreasing the confidence level, will a. decrease the width of the confidence interval b. decrease the margin of error c. make us less sure that our confidence interval contains the true parameter d. all of the above 20. A research company polled a random sample of 799 U.S. teens about internet use.0.49 of those teens reported that they had misrepresented their age online to gain access to...
Answer all parts of the Question and detailed answer. 1. Pew research, in November 2011, polled a...
Answer all parts of the Question and detailed answer. 1. Pew research, in November 2011, polled a random sample of 799 US teens about internet use. 49% of those teens reported that they had misrepresented their age online to gain access to websites and online services. a) Categorical or Quantitative Variable? b) Is 49% a Sample statistic or Population parameter? c) Should we use a z-distribution or t-distribution? d) Calculate a 90% confidence interval using STAT TESTS #A. e) Interpret...
A Pew Research Center poll surveyed a random sample 850 voters and asked them if they...
A Pew Research Center poll surveyed a random sample 850 voters and asked them if they support legalizing the use of marijuana. A Gallup poll surveyed a random sample of 1200 voters, from the same population that the Pew Research Center surveyed from, and asked the same question about legalizing the use of marijuana. Assume that the sample proportion who support legalizing the use of marijuana is exactly the same for each poll. If each poll goes on to construct...
3. The Pew Research Center wishes to estimate the proportion of adults who are aware of...
3. The Pew Research Center wishes to estimate the proportion of adults who are aware of Instagram. How many adults must the marketing firm randomly survey if they want to be 96% confident that the proportion of adults who are aware of Instagram is within 3% of the true proportion of adults who are aware of Instagram? Enter answer 4 The mean age of a sample of 40 college students is 23.95 with a standard deviation of 2.55. Assume that...
the sample data and confidence level given below to complete parts (a) through (d). A research...
the sample data and confidence level given below to complete parts (a) through (d). A research institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=952 and x= 512 who said "yes." Use a 99% confidence level. a.) Find the best point estimate of the population proportion p. b.) Identify the value of the margin of error E. c.) Construct the confidence interval. d.) Write a statement that correctly interprets the confidence interval. Choose the...
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...
Use the sample data and confidence level given below to complete parts (a) through (d). A...
Use the sample data and confidence level given below to complete parts (a) through (d). A research Institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1012 and 522 who said "yes. Use a 99% confidence level. Click the icon to view a table of z scores a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) b) Identity the value of the margin of error E....
A random sample of 1021 adults in a certain large country was asked "Do you prosty...
A random sample of 1021 adults in a certain large country was asked "Do you prosty much think televisions are a necessity or a luxury you could do wthout of the 1021 adults surveyed, 638 indicated that televisions are a ury they could do without Complete parts() through ( below Click here to view the standard formal distribution table lage 11 Cick here to view the standard normal distribution table page 21 (a) Obtain a point estimate for the population...
First, read the article on "The Delphi Method for Graduate Research." ------ Article is posted below...
First, read the article on "The Delphi Method for Graduate Research." ------ Article is posted below Include each of the following in your answer (if applicable – explain in a paragraph) Research problem: what do you want to solve using Delphi? Sample: who will participate and why? (answer in 5 -10 sentences) Round one questionnaire: include 5 hypothetical questions you would like to ask Discuss: what are possible outcomes of the findings from your study? Hint: this is the conclusion....
19. When calculating a confidence interval, keeping the sample size the same but decreasing the confidence level, will a. decrease the width of the confidence interval b. decrease the margin of error c. make us less sure that our confidence interval contains the true parameter d. all of the above 20. A research company polled a random sample of 799 U.S. teens about internet use.0.49 of those teens reported that they had misrepresented their age online to gain access to...
3. The Pew Research Center wishes to estimate the proportion of adults who are aware of Instagram. How many adults must the marketing firm randomly survey if they want to be 96% confident that the proportion of adults who are aware of Instagram is within 3% of the true proportion of adults who are aware of Instagram? Enter answer 4 The mean age of a sample of 40 college students is 23.95 with a standard deviation of 2.55. Assume that...
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...
Use the sample data and confidence level given below to complete parts (a) through (d). A research Institute poll asked respondents if they felt vulnerable to identity theft. In the poll, n=1012 and 522 who said "yes. Use a 99% confidence level. Click the icon to view a table of z scores a) Find the best point estimate of the population proportion p. (Round to three decimal places as needed.) b) Identity the value of the margin of error E....
A random sample of 1021 adults in a certain large country was asked "Do you prosty much think televisions are a necessity or a luxury you could do wthout of the 1021 adults surveyed, 638 indicated that televisions are a ury they could do without Complete parts() through ( below Click here to view the standard formal distribution table lage 11 Cick here to view the standard normal distribution table page 21 (a) Obtain a point estimate for the population...
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