ZuoTi.Pro
Question

According to the Internal Revenue Service, the average length of time for an individual to complete...

According to the Internal Revenue Service, the average length of time for an individual to complete (keep records for, learn, prepare, copy, assemble, and send) IRS Form 1040 is 10.26 hours (without any attached schedules). The distribution is unknown. Let us assume that the standard deviation is two hours. Suppose we randomly sample 36 taxpayers.

1. Give the distribution of X. (Round your answers to two decimal places.)

X ~ N(10.26, ___?___)

2. Find the probability that the 36 taxpayers took an average of more than 12 hours to finish their Form 1040s. (Round your answer to four decimal places.)

3. Would you be surprised if the 36 taxpayers finished their Form 1040s in an average of more than 12 hours? Explain why or why not in a complete sentence.

a. Yes, because the probability is very close to 0. OR

b. No, because the probability is very close to 1.

math   Statistics-And-Probability   
0 0
Add a comment Improve this question Transcribed image text
Next > < Previous
Sort answers by oldest

Homework Answers

Answer #1

0 0
Add a comment
Know the answer?
Add Answer to:
According to the Internal Revenue Service, the average length of time for an individual to complete...
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. Our experts will answer your question WITHIN MINUTES for Free.
Similar Homework Help Questions

  • According to the Internal Revenue Service, the average length of time for an individual to complete (keep records for, l...

    According to the Internal Revenue Service, the average length of time for an individual to complete (keep records for, learn, prepare, copy, assemble, and send) IRS Form 1040 is 10.18 hours (without any attached schedules). The distribution is unknown. Let us assume that the standard deviation is two hours. Suppose we randomly sample 36 taxpayers. Part (a) In words, define the random variable X. the number of taxpayers sampled the length of time, in minutes, for an individual to complete...

  • The IRS would like to find out the average time it takes a taxpayer to complete...

    The IRS would like to find out the average time it takes a taxpayer to complete a 1040 Individual Tax Return. The IRS has taken a sample of 25 taxpayers and found top enclose X = 16.3 hours with s = 11.2. The values of the 95% confident interval are (report answers rounded to two decimal places): Lower Limit Upper Limit

  • According to the Internal Revenue Service, the mean tax refund for the year 2014 was $2,800....

    According to the Internal Revenue Service, the mean tax refund for the year 2014 was $2,800. Assume the standard deviation is $450 and that the amounts refunded follow a normal probability distribution a. What percent of the refunds are more than $3,100? (Round the Intermediate values to 2 decimal places. Round your answer to 2 decimal places.) * Answer is complete but not entirely correct. Percent 24.14% b. What percent of the refunds are more than $3,100 but less than...

  • The Internal Revenue Service is studying the category of charitable contributions. A sample of 24 returns...

    The Internal Revenue Service is studying the category of charitable contributions. A sample of 24 returns is selected from young couples between the ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 24 returns, 8 had charitable contributions of more than $1,000. Suppose 7 of these returns are selected for a comprehensive audit. a. Explain why the hypergeometric distribution is appropriate. Because you are sampling a small population without replacement. you are...

  • The Internal Revenue Service is studying the category of charitable contributions. A sample of 22 returns...

    The Internal Revenue Service is studying the category of charitable contributions. A sample of 22 returns is selected from young couples between the ages of 20 and 35 who had an adjusted gross income of more than $100,000. Of these 22 returns, 7 had charitable contributions of more than $1,000. Suppose 6 of these returns are selected for a comprehensive audit. Explain why the hypergeometric distribution is appropriate. Because: (Pick one) you are sampling a small population without replacement. you...

  • Form 1040 Complete Patty's Form 1040 Form Department of the Treasury-Internal Revenue Service (99) 1040 U.S....

    Form 1040 Complete Patty's Form 1040 Form Department of the Treasury-Internal Revenue Service (99) 1040 U.S. Individual Income Tax Return2018 OMB No. 1545-0074 IRS Use Only Filing status: Single Your first name and initial Patty Your standard deduction: None Your social security number 466-33-1234 Last name Banyan If joint return, spouse's first name and initial Last name Spouse's social security number Full-year health care coverage or exempt (see inst.) Spouse standard deduction: None Home address (number and street). If you...

  • A hotel claims that 91% of its customers are very satisfied with its service. Complete parts...

    A hotel claims that 91% of its customers are very satisfied with its service. Complete parts a through d below based on a random sample of 10 customers. Binomial Distribution. (4 points) MUST use the Binomail Distribution function BINOM.DIST() function. Provide your final answer rounded to 4 decimal places in the yellow highlight cell. a) What is the probability that 6 customers are very satisfied? b) What is the probability that more than 6 customers are very satisfied? c) What...

  • IV. Continuous Distribution: Normal Normal 1. The average time to complete a final exam in a...

    IV. Continuous Distribution: Normal Normal 1. The average time to complete a final exam in a given course is normally distributed. With average of 80 min, and standard deviation of 8 minutes. For a certain student taken at random: to. What is the probability of finishing the exam in an hour or less? b. What is the probability of finishing the exam between 60 min and 70 min? Exponential 2. The time to fail in hours of a laser beam...

  • Lego has found that the average time it takes to build its version of the Death...

    Lego has found that the average time it takes to build its version of the Death Star from Star Wars follows a normal distribution with a mean of 27.13 hours with a standard deviation of 5.16 hours. Complete parts ​(a) through ​(f) below. ​a) What is the probability that it takes a Lego builder less than 20 hours to build the Death​ Star? ​(Round to four decimal​ places.) ​b) What is the probability that it takes a Lego builder more...

  • 13of 15 (0 complete) According to a survey in acountry, 26% of adults do not own...

    13of 15 (0 complete) According to a survey in acountry, 26% of adults do not own a credt card. Suppose a simple random sample ot (a) Describe the sampling distrbution of p, the sample proportion of O A. Not normal because ns0.05N and np(1 -p)10 200 adults is obtained. Complete parts (a) through (d) below adults who do not own a credit card. Choose the phrase that best describes the shape of the sampling distribution of p below ○ B....

ADVERTISEMENT
Free Homework Help App
Download From Google Play
Scan Your Homework
to Get Instant Free Answers
Need Online Homework Help?
Ask a Question
Get Answers For Free
Most questions answered within 3 hours.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT