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part b: what assumptions need to be made about this population? part c: is there any...

part b: what assumptions need to be made about this population?

part c: is there any evidence thag this proportion has changed since 2012 based on this sample ?

It was reported that 50% of individual tax returns were filed electronically in 2012. A random sample of 225 tax returns from
It was reported that 50% of individual tax returns were filed electronically in 2012. A random sample of 225 tax returns from 2013 was selected. From this sample, 153 were fled electronically. Complete parts a through c below ama . Construct a 90% confidence interval to estimate the actual proportion of taxpayers who fled electronically in 2013. 10: A 90% confidence interval to estimate the actual proportion has a lower limit of and an upper limit of (Round to three decimal places as needed.)
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Ansi p=0.59, 8 - 7 - 153 = 0.68 a) Contodence Inselval - B z zelo I got. c. 1 0.68€ ).645 10.68*0.39 Y 295 = 0.68 + 0.0512 =

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