A recent report summarized the results of a survey on how people get their news.
ID: 3058022 • Letter: A
Question
A recent report summarized the results of a survey on how people get their news. Of the 2322 people in the survey who own a desktop or laptop, 1635 reported that they get their news from the desktop or laptop.
(a) Identify the sample size and the count. sample size 2322 Correct: Your answer is correct. count 1635 Correct: Your answer is correct.
(b) Find the sample proportion and its standard error. (Round your answers to four decimal places.) p = .7041 Correct: Your answer is correct. SEp = Incorrect: Your answer is incorrect. (c)
Find and interpret the 95% confidence interval for the population proportion. (Round your answers to three decimal places.) With 95% confidence, the proportion of people who get their news from the destop or laptop is between a lower value of and an upper value of . (d) Are the guidelines for use of the large-sample confidence interval satisfied? Explain your answer. The guidelines satisfied, since the number of successes and failures in the sample are both . Tutorial
Explanation / Answer
A recent report summarized the results of a survey on how people get their news. Of the 2322 people in the survey who own a desktop or laptop, 1635 reported that they get their news from the desktop or laptop.
(a) Identify the sample size and the count. sample size 2322 Correct: Your answer is correct. count 1635 Correct: Your answer is correct.
(b) Find the sample proportion and its standard error. (Round your answers to four decimal places.) p = .7041 Correct: Your answer is correct. SEp = Incorrect: Your answer is incorrect. (c)
Find and interpret the 95% confidence interval for the population proportion. (Round your answers to three decimal places.) With 95% confidence, the proportion of people who get their news from the destop or laptop is between a lower value of and an upper value of . (d) Are the guidelines for use of the large-sample confidence interval satisfied? Explain your answer. The guidelines satisfied, since the number of successes and failures in the sample are both . Tutorial