Login

Contact Us
Math Homework
Ask a Math Homework Question, Get an Answer ASAP!
Not a Math Homework Question?
How JustAnswer Works:
Ask an Expert
Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
Get a Professional Answer
Via email, text message, or notification as you wait on our site.
Ask follow up questions if you need to.
100% Satisfaction Guarantee
Rate the answer you receive.
Ask R.R. Jha Your Own Question
R.R. Jha
,
Bachelor's Degree
Category:
Math Homework
Satisfied Customers:
5470
Experience:
Math Expert
20870358
Type Your Math Homework Question Here...
R.R. Jha is online now
in a random sample of 21 people, the mean number of books they
Resolved Question:
in a random sample of 21 people, the mean number of books they read in the past year was 10.53 books and the standard deviation was 16.60 books. Assume the variable is normally distributed and use a tdistribution to construct a 90% confidence interval for the population mean U. What is the margin of error of U?
The confidence interval for the population mean u is (?,?).
round to the nearest hundredth as needed
The margin of error of U is (?).round to the nearest hundredth as needed
Submitted:
1 year ago.
Category:
Math Homework
Share this conversation
Expert:
R.R. Jha
replied 1 year ago.
Hello,
Welcome!
The confidence interval for the population mean u is (
4.28
,
16.78
).
The margin of error of U is (
6.25)
Let me know if you need help with any other questions.
Please leave a rating.
Thanks
R.R. Jha, Bachelor's Degree
Category:
Math Homework
Satisfied Customers:
5470
Experience:
Math Expert
R.R. Jha and other Math Homework Specialists are ready to help you
Ask your own question now
Share this conversation
JustAnswer in the News:
Askadoc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses workfromhome jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.
What Customers are Saying:
Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.
Mary C.
Freshfield, Liverpool, UK
<
Last

Next
>
Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.
Mary C.
Freshfield, Liverpool, UK
This expert is wonderful. They truly know what they are talking about, and they actually care about you. They really helped put my nerves at ease. Thank you so much!!!!
Alex
Los Angeles, CA
Thank you for all your help. It is nice to know that this service is here for people like myself, who need answers fast and are not sure who to consult.
GP
Hesperia, CA
I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.
Justin
Kernersville, NC
Just let me say that this encounter has been entirely professional and most helpful. I liked that I could ask additional questions and get answered in a very short turn around.
Esther
Woodstock, NY
Thank you so much for taking your time and knowledge to support my concerns. Not only did you answer my questions, you even took it a step further with replying with more pertinent information I needed to know.
Robin
Elkton, Maryland
He answered my question promptly and gave me accurate, detailed information. If all of your experts are half as good, you have a great thing going here.
Diane
Dallas, TX
Meet The Experts:
Mr. Gregory White
Master's Degree
Satisfied Customers:
86
M.A., M.S. Education / Educational Administration
<
Last

Next
>
http://ww2.justanswer.com/uploads/ED/educatortech/201267_1256_williams4.64x64.jpg
Mr. Gregory White's Avatar
Mr. Gregory White
Master's Degree
Satisfied Customers:
86
M.A., M.S. Education / Educational Administration
http://ww2.justanswer.com/uploads/CO/CosumelEyes/201254_4923_Profile.64x64.jpg
Ray Atkinson's Avatar
Ray Atkinson
Bachelor's Degree
Satisfied Customers:
61
Innercity high school substitute teacher. Degrees in mathemetics, accounting, and education. Years and years of tutoring.
http://ww2.justanswer.com/uploads/SO/sonofGauss/201266_20151_PortraitLHW.64x64.jpg
JACUSTOMERyrynbdjl's Avatar
JACUSTOMERyrynbdjl
Master's Degree
Satisfied Customers:
49
I have taught college Mathematics for the past 10 years.
http://ww2.justanswer.com/uploads/homeworklady/20081124_125231_susannewavatar.jpg
SusanAthena's Avatar
SusanAthena
Master's Degree
Satisfied Customers:
41
Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.
http://ww2.justanswer.com/uploads/AR/arubin9/201224_42617_ArthurRubinedit.64x64.jpg
Dr Arthur Rubin's Avatar
Dr Arthur Rubin
Doctoral Degree
Satisfied Customers:
35
Ph.D. in Mathematics, California Institute of Technology
http://ww2.justanswer.com/uploads/mhasan420/2010123_19189_topi.jpg
mhasan420's Avatar
mhasan420
Master's Degree
Satisfied Customers:
29
BA Maths, Oxford
http://ww2.justanswer.com/uploads/DO/Donbacongamer/201236_2337_mathmaster.64x64.jpg
Don's Avatar
Don
Master's Degree
Satisfied Customers:
17
M.S. Astronautical Engineering. Math/Science/Comp Tutor
Related Math Homework Questions
Question
Date Submitted
i need help with pre test and post test questions for
3/3/2015
3/3/2015
Ryan
Here is your second payment for the exams in sorry I could
3/2/2015
3/2/2015
Ashok Kumar
My paypal is not working so I will pay you through this site
2/28/2015
3/2/2015
Ashok Kumar
Statistic Project Proposal
2/26/2015
2/27/2015
Ryan
a. Use the numbers shown in the bar graph below to find the
2/25/2015
2/25/2015
Ryan
Hello Stevewh,I am Julie. I am struggling with the questions
2/24/2015
2/25/2015
Ryan
Need help with statistics homework
2/24/2015
2/24/2015
Ryan
I have another statistics homework thing that i need to get
2/23/2015
2/23/2015
Ryan
http://s000.tinyupload.com/index.php?file_id=92447279257038597180 http://s000.tinyuploa
2/22/2015
2/23/2015
Ryan
Need help with math. Download questions from this link
2/22/2015
2/22/2015
Ryan
Chat Now With A Math Tutor or Teacher
R.R. Jha
154 Satisfied Customers
Math Expert
X
Ask a Math Tutor or Teacher
Get a Professional Answer. 100% Satisfaction Guaranteed.
134 Math Tutors or Teachers are Online Now
Type Your Math Homework Question Here...
characters left: