Math Homework

Ask Math Questions. Get Help With Your Math Homework

Ask an Expert,

Get an Answer ASAP!

Customer Question

Hiii :) trying to do a...

Hiii :)

trying to do a pearson r and the following is a list of the test scores:

15 37

18 38

25 38

34 48

36 48

please show work so that I can see if my answer is close to the one you've come up with as I'm really confused

when doing this problem is there a difference between sigmax squared and (sigmax squared)?

ty

trying to do a pearson r and the following is a list of the test scores:

15 37

18 38

25 38

34 48

36 48

please show work so that I can see if my answer is close to the one you've come up with as I'm really confused

when doing this problem is there a difference between sigmax squared and (sigmax squared)?

ty

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

1. If your calculated r = -1.17, what does that indicate? 2.

1. If your calculated r = -1.17, what does that indicate? 2. Which shows a stronger relationship, a correlation coefficient of r = -.90 or r = + .30? 3. In a a two tailed test, with alpha set at .05, … read more

Please use MegaStat and State Hypotheses10.15 The average

Please use MegaStat and State Hypotheses. Please also state how quickly you can get it done. 10.15 The average length of stay (LOS) from U.S. short-stay hospitals for a sample of 25 male pneumonia pat… read more

The following shows the starting salaries (in $1,000) of samples

The following shows the starting salaries (in $1,000) of samples of individual in two different industries. Using Excel, at 95% confidence test to determine if there is a significant difference in the… read more

I need help with a correlation analysis and hypothesis test.

I need help with a correlation analysis and hypothesis test. Here is the data used to do the regression analysis and I'm trying to find if being older means making more money. I need help with correla… read more

Dr. Dan 1. Start with x 100 and add 4 x values to make

Dr. Dan 1. Start with x = 100 and add 4 x values to make a sample of five data such that s=0 2. Given the following frequency distribution, find the mean, variance, and standard deviation. Please show… read more

construct a grouped frequency distribution for the following

construct a grouped frequency distribution for the following 28 scores using a class width of 4 numbers given 40 39 41 48 27 37 26 33 38 31 38 27 38 46 39 28 36 34 26 37 34 43 42 25 47 29 25 28… read more

6.For the following scores, X Y 3 12 6 7 3 9 5 7 3 10 a.

6.For the following scores, X Y 3 12 6 7 3 9 5 7 3 10 a. Compute the Pearson correlation. b. With a small sample, a single point can have a large effect on the magnitude of the correlation. Change the… read more

Week 6 Week 6 - W6 Assignment 2 ----------------------------------------------------

Week 6 : Week 6 - W6: Assignment 2 -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- 1. … read more

Assume you wish to analyze the following hypothesis There

Assume you wish to analyze the following hypothesis: “There is no statistical difference between lectures, small group discussions, and large group discussions in terms of math achievement scores for … read more

susan athena Use the following numbers 48, 38, 15, 36, 25,

susan athena Use the following numbers: 48, 38, 15, 36, 25, 38, 48, 18, 34, 37. and assume the numbers represent scores on a posttest. Using these “scores,” give the formula, compute the following (sh… read more

Use the following numbers 48, 38, 15, 36, 25, 38, 48, 18,

Use the following numbers: 48, 38, 15, 36, 25, 38, 48, 18, 34, 37. and assume the numbers represent scores on a posttest. Using these “scores,” give the formula, compute the following (show your work)… read more

27) Statistical methods that require few assumptions, if any,

27) Statistical methods that require few assumptions, if any, about the population distribution are known as A. nonparametric techniques. B. parametric techniques. C. All of these D. free agent techni… read more

1. The following data show samples of three chain stores in

1. The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit. Management wishes to test whether each shopper… read more

first and ninth decile and 33rd percentile of384041

show work for figuring first and ninth decile and 33rd percentile of 38 40 41 45 48 48 50 50 51 51 52 52 53 54 55 55 55 56 56 57 59 59 59 62 62 62 63 64 65 66 66 67 67 69 69 71 77 78 79 79… read more

1. The following data show samples of three chain stores in

1. The following data show samples of three chain stores in three different locations in one town and the amount of dollars spent per customer per visit. Management wishes to test whether each shopper… read more

11.73 For independent samples of customers of Internet providers

11.73 For independent samples of customers of Internet providers A and B, the ages are as listed in file XR11073. Using the 0.05 level of significance in a nondirectional test, examine whether the var… read more

1. Use the following numbers 48, 38, 15, 36, 25, 38, 48, 18,

1. Use the following numbers: 48, 38, 15, 36, 25, 38, 48, 18, 34, 37. and assume the numbers represent scores on a posttest. Using these “scores,” give the formula, compute the following (show your wo… read more

2. Compute each of the following statistics (Include the formula

Compute each of the following statistics (Include the formula and show your work). You may use a computer program to calculate but be sure to show the work. Pretest scores: 15, 05, 28, 17, 40, 34, 06,… 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.