Question

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

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, 237 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.

Math   Statistics-And-Probability   
0 0
Add a commentTranscribed image text
Next >

Homework Answers

Answer #1

0 0
Know the answer?
Your Answer:

Post as a guest

Your Name:

What's your source?

Earn Coins

Coins can be redeemed for fabulous gifts.

Log In

Sign Up

Not the answer you're looking for?
Ask your own homework help question
Similar Questions
It was reported that 64​% of individual tax returns were filed electronically in 2012. A random...
It was reported that 64​% of individual tax returns were filed electronically in 2012. A random sample of 275 tax returns from 2013 was selected. From this​ sample, 178 were filed electronically. a. Construct a 90​% confidence interval to estimate the actual proportion of taxpayers who filed electronically in 2013. 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.)
It was reported that 59 ​% of individual tax returns were filed electronically in 2012. A...
It was reported that 59 ​% of individual tax returns were filed electronically in 2012. A random sample of 225 tax returns from 2013 was selected. From this​ sample, 142 were filed electronically. a) Construct a 90 ​% confidence interval to estimate the actual proportion of taxpayers who filed electronically in 2013. A 90 ​% confidence interval to estimate the actual proportion has a lower limit of ______ and an upper limit of ________ . ​(Round to three decimal places...
The IRS reported that 62% of individual tax returns were filed electronically in 2008. A random...
The IRS reported that 62% of individual tax returns were filed electronically in 2008. A random sample of 225 tax returns from 2010 was selected. From this sample, 163 were filed electronically. a) Construct a 95% confidence interval to estimate the actual proportion of taxpayers who filed electronically in 2010. b) What is the margin of error for this sample? c) Is there any evidence that this proportion has changed since 2008 based on this sample? Please spell the steps...
A website reported that 29% of drivers 18 and older admitted to texting while driving in...
A website reported that 29% of drivers 18 and older admitted to texting while driving in 2009. In a random sample of 800 drivers 18 years and older drawn in​ 2010, 176 of the drivers said they texted while driving. Complete parts a through c below. a. Construct a 95% confidence interval to estimate the actual proportion of people who texted while driving in 2010. A 95% confidence interval to estimate the actual proportion has a lower limit of nothing​​​​​​​...
A website reported that 31% of drivers 18 and older admitted to texting while driving in...
A website reported that 31% of drivers 18 and older admitted to texting while driving in 2009. In a random sample of 400 drivers 18 years and older drawn in​ 2010, 92 of the drivers said they texted while driving. Complete parts a through c below. a. Construct a 90​% confidence interval to estimate the actual proportion of people who texted while driving in 2010.A 90​% confidence interval to estimate the actual proportion has a lower limit of nothing and...
According to a census? bureau, 13.513.5?% of the population in a certain country changed addresses from...
According to a census? bureau, 13.513.5?% of the population in a certain country changed addresses from 2008 to 2009. In? 2010, 3131 out of a random sample of 400400 citizens of this country said they changed addresses during the previous year? (in 2009). Complete parts a through c below. a. Construct a 9595?% confidence interval to estimate the actual proportion of people who changed addresses from 2009 to 2010.A 9595?% confidence interval to estimate the actual proportion has a lower...
An IRS report stated that 17% of all electronically filed income tax returns for 2003 contained...
An IRS report stated that 17% of all electronically filed income tax returns for 2003 contained errors.  H&R Block suspects this percentage has changed.  In a random sample of 250 electronically filed income tax returns for 2003, 35 were found to contain errors. (a) What is the test statistic? (b) Is there evidence to indicate that this proportion has changed? if so, a. Yes, the p-value is greater than 0.05. b. No, the p-value is less than 0.05. c. Yes, the p-value...
A website reported that 28 % of drivers 18 and older admitted to texting while driving...
A website reported that 28 % of drivers 18 and older admitted to texting while driving in 2009. In a random sample of 400 drivers 18 years and older drawn in 2010, 109 of the drivers said they texted while driving. Complete parts a through c below. a. Construct a 90 % confidence interval to estimate the actual proportion of people who texted while driving in 2010. A 90 % confidence interval to estimate the actual proportion has a lower...
According to a census​ bureau, 11.5​% of the population in a certain country changed addresses from...
According to a census​ bureau, 11.5​% of the population in a certain country changed addresses from 2008 to 2009. In​ 2010, 26 out of a random sample of 400 citizens of this country said they changed addresses during the previous year​ (in 2009). Complete parts a through c below. a. Construct a 95​% confidence interval to estimate the actual proportion of people who changed addresses from 2009 to 2010. A 95​% confidence interval to estimate the actual proportion has a...
According to a census​ bureau,12.5​% of the population in a certain country changed addresses from 2008...
According to a census​ bureau,12.5​% of the population in a certain country changed addresses from 2008 to 2009. In​ 2010,14 out of a random sample of 200 citizens of this country said they changed addresses during the previous year​ (in 2009). Complete parts a through c below. A) Construct a 9999​% confidence interval to estimate the actual proportion of people who changed addresses from 2009 to 2010. A) 99​% confidence interval to estimate the actual proportion has a lower limit...
ADVERTISEMENT
Need Online Homework Help?

Get Answers For Free
Most questions answered within 1 hours.

Ask a Question
ADVERTISEMENT