The IRS reported that 90% of individual tax returns were filed electronically in 2017. A random sample

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The IRS reported that 90% of individual tax returns were filed electronically in 2017. A random sample of 225 tax returns from 2018 was selected. From this sample, 197 were filed electronically.

a. Construct a 95% confidence interval to estimate the actual proportion of taxpayers who filed electronically in 2018.

b. What is the margin of error for this sample?

c. Is there any evidence that this proportion has changed since 2017 based on this sample?

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Business Statistics

ISBN: 9780134685267

3rd Edition

Authors: Robert A. Donnelly

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Question Posted: Nov 05, 2019 04:43 AM

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The IRS reported that 90% of individual tax returns were filed electronically in 2017. A random sample

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a b ME p 196000220 00431 c There is no evidence that the ...View the full answer

Business Statistics

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