Mathematics, 04.03.2020 00:10 aidenbender06
A poll conducted in 2013 found that 52% of U. S. adult Twitter user 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 justify each of your answers.
a) the data provide statistically significant evidence that more than half U. S. adult twitter users get some news throught Twitter. Use a significance level of alpha = 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 estimate, we should collect less data.
d) If we construct a 90% confidence interval for the perventage of U. S. adults Twitter suers who get some news through Twitter, this confidene interval will be wider than a corresponding 99% confidence interval.
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A poll conducted in 2013 found that 52% of U. S. adult Twitter user get at least some news on Twitte...
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