Business, 13.03.2020 19:20 webbjalia04

It was reported that 63% of individual tax returns were filed electronically in 2012. A random sample of 325 tax returns from 2013 was selected. From this sample, 230 were filed electronically. Complete parts a through c below. a. Construct a 95% confidence interval to estimate the actual proportion of taxpayers who filed electronically in 2013. A 95% confidence interval to estimate the actual proportion has a lower limit of nothing and an upper limit of nothing. (Round to three decimal places as needed.) b. What is the margin of error for this sample? The margin of error is nothing. (Round to three decimal places as needed.) c. Is there any evidence that this proportion has changed since 2012 based on this sample? Because the confidence interval found in part a ▼ does not include includes the reported proportion from 2012, this sample ▼ provides does not provide evidence that this proportion has changed since then.

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It was reported that 63% of individual tax returns were filed electronically in 2012. A random sampl...

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