Mathematics, 21.07.2020 03:01 liddopiink1
Twitter users and news, Part II:
A poll conducted in 2013 found that 52% of U. S. adult Twitter users get at least some news on Twitter, and the standard error for this estimate was 2.4%. Identify each of the following statements as true or false. Provide an explanation to justify each of your answers.
(a) The data provide statistically significant evidence that more than half of U. S. adult Twitter users get some news through Twitter. Use a significance level of a = 0.01.
(b) Since the standard error is 2.4%, we can conclude that 97.6% of all U. S. adult Twitter users were included in the study.
(c) If we want to reduce the standard error of the estimate, we should collect less data
(d) If we construct a 90% confidence interval for the percentage of U. S adults Twitter users who get some news through Twitter, this confidence interval will users who 99% confidence interval. than a corresponding
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Twitter users and news, Part II:
A poll conducted in 2013 found that 52% of U. S. adult Twitter use...
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