Math Homework

Ask Math Questions. Get Help With Your Math Homework

Connect one-on-one with {0} who will answer your question

Customer Question

Compute the standardized test statistic...

Compute the standardized test statistic, x2, to test the claim: The known population s.d. less than or equal to 3.2 if n=20, s2=6.2, and a confindence level of 0.01

Show More

Show Less

Was this answer helpful?

Describe your issueThe assistant will guide you

Chat 1:1 with a math tutor or teacherLicensed Experts are available 24/7

100% satisfaction guaranteeGet all the answers you need

Related Math Homework Questions

Question 1 Suppose you wish to test the claim that

Question 1 Suppose you wish to test the claim that μ -1.645. Reject Ho if test statistic < -1.645. Reject Ho if test statistic < -1.96. Reject Ho if test statistic 10. Given a sample of n = 50 a… read more

Hypothesis test for the population mean Z test A leasing

Hypothesis test for the population mean: Z test A leasing firm claims that the mean number of miles driven annually,m, in its leased cars is less than 13100 miles. A random sample of 16 cars leased fr… read more

5.Assume that the data has a normal distribution and the population

5.Assume that the data has a normal distribution and the population standard deviation is known. Find the critical z value used to test a null hypothesis. a = 0.08 for a two-tailed test. A) ±1.75 B) ±… read more

Of 100 adults selected randomly from one town, 62 have health

Of 100 adults selected randomly from one town, 62 have health insurance. What is the 90% confidence interval for the true proportion of all adults in the town who have health insurance? Answer 0.495 &… read more

1.A random sample of 51 observations was selected from a normally

1.A random sample of 51 observations was selected from a normally distributed population. The sample mean was x = 64, and the sample variance was s2 = 48.0. Does the sample show sufficient reason to c… read more

1. A machine produces 3-inch nails. A sample of 12 nails was

1. A machine produces 3-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows: 2.97 2.86 2.82 2.86 2.95 2.80 2.81 2.98 2.88 2.83 2.95 2.95 Assuming tha… read more

A machine produces 3-inch nails. A sample of 12 nails was selected

A machine produces 3-inch nails. A sample of 12 nails was selected and their lengths determined. The results are as follows: 2.94 2.96 3.01 3.01 3.03 3.03 3.03 3.03 3.07 2.93 3.00 3.07 Assuming that =… read more

A researcher knows that the weights of 6 year olds are normally

A researcher knows that the weights of 6 year olds are normally distributed with u(mean)= 20.9 kg and o(standard deviation)=3.2 She suspects that children in poverty- striken regions are undernourishe… read more

Using AIUs large database of survey responses from the AIU

Using AIU's large database of survey responses from the AIU data set, complete the following: Perform hypothesis testing on one variable's data. (Choose either the intrinsic or extrinsic column.) Perf… read more

12. A sample of size n 20 is selected from a normal population

12. A sample of size n = 20 is selected from a normal population to construct a 95% confidence interval estimate for a population mean. The interval was computed to be (8.20 to 9.80). Determine the sa… read more

1. Classify the following as independent or dependent samples

1. Classify the following as independent or dependent samples: (6 pts – 2 pts. ea.) a. The effectiveness of two blood pressure medicines on two groups of patients. b. Measures of gas mileage and speed… read more

1. Classify the following as independent or dependent samples

1. Classify the following as independent or dependent samples: a. The effectiveness of two blood pressure medicines on two groups of patients. b. Measures of gas mileage and speed for a group of racec… read more

1. In what ways is the t distribution similar to the standard

1. In what ways is the t distribution similar to the standard normal distribution? In what ways is the t distribution different from the standard normal distribution? How does the formula for the t te… read more

compute the standardized test statistic, X2, to test the claim

compute the standardized test statistic, X2, to test the claim o2 <(_) 25.6 if n = 20, s2 = 49.6, and a=0.01… read more

Compute the standardized test statistic, X2 to test the claim

Compute the standardized test statistic, X2 to test the claim o2 =(/) 34 if n = 10, s2 = 37.5, and a=0.01… read more

Question for Greg Michaelson DUE 3/23/09 Part I T/F & Multiple

Question for Greg Michaelson DUE 3/23/09 Part I T/F & Multiple Choice (20 points) 1. If ? is unknown when completing a hypothesis test about the population mean, then the best estimate for the unknown… read more

1. A machine produces 3-inch nails. A sample of 10 nails was

1. A machine produces 3-inch nails. A sample of 10 nails was selected and the lengths determined. The results are as follows: 2.89 2.95 3.00 3.05 &nbs p;2.99 2.96 3.10 3.06 3.00 3.12 Use these results… read more

Part I T/F & Multiple Choice (20 points) 1. If is unknown

Part I T/F & Multiple Choice (20 points) 1. If ? is unknown when completing a hypothesis test about the population mean, then the best estimate for the unknown standard deviation is s. _____ T/F 2. Th… read more

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.

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.

...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.

Wonderful service, prompt, efficient, and accurate. Couldn't have asked for more. I cannot thank you enough for your help.

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!!!!

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.

Hesperia, CA

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

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.

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.

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.

Dallas, TX

< Previous | Next >

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.