Math Homework

Related Math Homework Questions
1.) A study of college football games shows that the number
1.) A study of college football games shows that the number of holding penalties assessed has a mean of 2.3 penalties per game and a standard deviation of 0.8 penalties per game. What is the probabili… read more
Chirag
Master's Degree
10,329 satisfied customers
The lifetime of a certain brand of battery is known to have
The lifetime of a certain brand of battery is known to have a standard deviation of 11.5 hours. Suppose that a random sample of 90 such batteries has a mean lifetime of 34.1 hours. Based on this sampl… read more
unvrs
Lecturer of Mathematics
Master's Degree
36 satisfied customers
Confidence interval for the population mean: Use of the standard
Confidence interval for the population mean: Use of the standard normal The standard deviation of test scores on a certain achievement test is . A random sample of scores on this test had a mean of . … read more
Ryan
Bachelor's Degree
4,665 satisfied customers
The union for a particular industry has determined that the
The union for a particular industry has determined that the standard deviation of the daily wages of its workers is \$22. A random sample of 150 workers in this industry has a mean daily wage of \$125. … read more
Scott
Master's Degree
17,710 satisfied customers
The breaking strengths of cables produced by a certain manufacturer
The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 108 pounds. A random sample of 50 newly manufactured cables has a mean breaking strength of 1750 pounds… read more
Chirag
Master's Degree
10,329 satisfied customers
The lifetime of a certain brand of electric light bulb is known
The lifetime of a certain brand of electric light bulb is known to have a standard deviation of hours. Suppose that a random sample of bulbs of this brand has a mean lifetime of hours. Find a confiden… read more
Sandhya_sharma
Master's Degree
3,072 satisfied customers
The union for a particular industry has determined that the
The union for a particular industry has determined that the standard deviation of the daily wages of its workers is \$17. A random sample of 80 workers in this industry has a mean daily wage of \$118. F… read more
Chirag
Master's Degree
10,329 satisfied customers
Suppose that a random sample of eleven recently sold houses
Suppose that a random sample of eleven recently sold houses in a certain city has a mean sales price of \$295,000, with a standard deviation of \$9,000. Under the assumption that house prices are normal… read more
Chirag
Master's Degree
10,329 satisfied customers
Hypothesis test for the population mean Z test The breaking
Hypothesis test for the population mean: Z test The breaking strengths of cables produced by a certain manufacturer have a mean,u , of 1750 pounds, and a standard deviation of 85 pounds. It is claimed… read more
Chirag
Master's Degree
10,329 satisfied customers
The union for a particular industry has determined that the
The union for a particular industry has determined that the standard deviation of the daily wages of its workers is \$17. A random sample of 70 workers in this industry has a mean daily wage of \$122. F… read more
Ryan
Bachelor's Degree
4,665 satisfied customers
The breaking strengths of cables produced by a certain manufacturer
The breaking strengths of cables produced by a certain manufacturer have a standard deviation of 100 pounds. A random sample of newly manufactured cables has a mean breaking strength of 1950 pounds. B… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
The lifetime of a certain brand of battery is known to have
The lifetime of a certain brand of battery is known to have a standard deviation of 16 hours. Suppose that a random sample of 50 such batteries has a mean lifetime of 40.1 hours. Based on this sample,… read more
Osbert12
Master's Degree
2,468 satisfied customers
Hypothesis test for the population mean Z test The breaking
Hypothesis test for the population mean: Z test The breaking strengths of cables produced by a certain manufacturer have a mean, u, of 1900 pounds, and a standard deviation of 65 pounds. It is claimed… read more
R.R. Jha
Bachelor's Degree
4,606 satisfied customers
Suppose that a random sample of twelve recently sold houses
Suppose that a random sample of twelve recently sold houses in a certain city has a mean sales price of 275,000 with a standard deviation of 14,000. Under the assumption that house prices are normally… read more
R.R. Jha
Bachelor's Degree
4,606 satisfied customers
Confidence interval for the population mean Use of the t distribution Sup
Confidence interval for the population mean: Use of the t distribution Suppose that a random sample of eleven recently sold houses in a certain city has a mean sales price of \$275,000 , with a standar… read more
Stevewh
Teacher
Bachelor's Degree
6,427 satisfied customers
for Muvee Suppose that a random sample of nine recently
for Muvee Suppose that a random sample of nine recently sold houses in a certain city has a mean sales price of \$295,000, with a standard deviation of \$8000 . Under the assumption that house prices ar… read more
muvee
Master's Degree
1,030 satisfied customers
Consider the following random sample of diameter measurements
A corporation that maintains a large fleet of company cars for the use of its sales staff is interested in the mean distance driven monthly per sales person. The following table gives the monthly dist… read more
muvee
Master's Degree
1,030 satisfied customers
The lifetime of a certain brand of electric light bulb is known
The lifetime of a certain brand of electric light bulb is known to have a standard deviation of 48 hours. Suppose that a random sample of 150 bulbs of this brand has a mean lifetime of 489 hours. Find… read more
muvee
Master's Degree
1,030 satisfied customers
Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Ask-a-doc 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.
...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 work-from-home 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

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!!!!

AlexLos 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.

GPHesperia, CA

I couldn't be more satisfied! This is the site I will always come to when I need a second opinion.

JustinKernersville, 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.

EstherWoodstock, 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.

RobinElkton, 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.

DianeDallas, TX

< Previous | Next >

## Meet the Experts:

Mr. Gregory White

Master's Degree

92 satisfied customers

M.A., M.S. Education / Educational Administration

JACUSTOMER-yrynbdjl-

Master's Degree

49 satisfied customers

I have taught college Mathematics for the past 10 years.

SusanAthena

Master's Degree

41 satisfied customers

Tutor for Algebra, Geometry, Statistics. Explaining math in plain English.

Dr Arthur Rubin

Doctoral Degree

38 satisfied customers

Ph.D. in Mathematics, California Institute of Technology

mhasan420

Master's Degree

29 satisfied customers

BA Maths, Oxford

Don

Master's Degree

17 satisfied customers

M.S. Astronautical Engineering. Math/Science/Comp Tutor

judybailey61

Bachelor's Degree

17 satisfied customers

20 years teaching mathematics

< Previous | Next >

Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

Show MoreShow Less