User Account

All Pages

Compute the sample covariance

Assignment Help Basic Statistics
Reference no: EM132372734

College football players trying out for the NFL are given a standardized intelligence test. The data below contains the average score on this exam and the graduation rate for football players at 10 different schools. Use this data to complete parts? (a) through? (c).

Test Score 27.8 24.2 23.7 23.5 17.8 17.7 17.4 16.8 15.8 15.5

Graduation? % 68.7 47.4 90.2 81.0 30.1 52.3 56.0 49.0 46.3 65.1

a. Compute the sample covariance. (Round to three decimal places as? needed.)

b. Compute the coefficient of correlation. (Round to three decimal places as needed.)

c. What conclusions can you reach about the relationship between test scores and graduation? rate?

A. The covariance is too small to draw any significant conclusions.

B. There is no relationship between the variables.

C. There is a weak linear relationship between the variables. Correlations this low can be caused by random variations.

D. There is a weak relationship between test scores and graduation rates. Increases in scores cause relatively small increases in graduation rates.

Reference no: EM132372734

Questions Cloud

Five network penetration testing techniques : Five network penetration testing techniques, Advantages and disadvantages of each, One notable social engineering test.
Compute the sample covariance : Compute the sample covariance. Compute the coefficient of correlation.
Organizational needs according to the business startup idea : Did you feel confident in critically assessing the organizational needs according to the business startup idea
Data table shows the yields for a money market? account : The data table shows the yields for a money market? account, a? one-year certificate of deposit? (CD), and a? five-year CD for 13 banks.
Compute the sample covariance : College football players trying out for the NFL are given a standardized intelligence test. The data below contains the average score on this exam
Michael porter five competitive forces model : There are numerous case studies on Michael Porter's Five Competitive Forces Model.
Disaster recovery and business continuity plan : Prepare a 2- to 2.5-page Disaster Recovery and Business Continuity Plan in Microsoft® Word for your company. I
Playbook-runbook based on your facilitator feedback : Revise your previous week's Playbook/Runbook based on your facilitator's feedback and compile as a complete document
Software makes extensive use of libraries and frameworks : Modern software makes extensive use of libraries and frameworks. One of requirements in this course is that students work on a project that involves creating

Reviews

Write a Review

Basic Statistics Questions & Answers

  Providing gravel for a new road puts

As a construction engineer for a city, you are responsible for ensuring that the company that is providing gravel for a new road puts as much gravel in each truckload as they claim to.

  Assume that a simple random sample has been selected froma

assume that a simple random sample has been selected froma normally distributed population and the test given

  Construct a confidence interval for the proportion of awards

They were based on the applicant's qualifications, interests, and other variables. Construct a 95% confidence interval for the proportion of all awards on this service made for reasons other than financial need.

  Probability that the store will have to refund the money

1.To boost holiday sales, a jewelry store in Bismarck, North Dakota, is advertising the following promotion:

  What are chances of seeing what bottling company observed

If the standard deviation of the strength of the vendor's bottles is 8 kg/cm2, with the mean of 310 kg/cm2, what are the chances of seeing what the bottling company observed?

  Population mean prices per gallon for the two companies

Rental car gasoline prices per gallon were sampled at eight major airports. Use α = .05 to test the hypothesis of no difference between the population mean prices per gallon for the two companies

  What size sample would then need to achieve

They want to be 95% confident in their estimate within 2.5% Assuming set up costs are expensive compared to the actual sampling, what size sample would then need to achieve these results at a 60% response rate?

  Find the mean-median-mode-sample variance and range

Find the mean, median, mode, sample variance, and range. Do you think that this sample might have come from a normal population? Why or why not?

  How large a sample is needed to estimate this mean

A researcher wants to estimate the average weight loss obtained by patients at a residential weight-loss clinic during the first week of a controlled diet and exercise regimen. How large a sample is needed to estimate this mean to within 0.5 lb wi..

  A common dice game problem-probability

Play 100 games of scraps and empirically determine an estimate for the probability of winning.

  Illustrate the phenomenon of state dependent memory

Many experiments have investigated the concept of state-dependent memory. Participants learn a task in a particular state-say, under the influence of a drug or not under the influence of the drug.

  African-americans vote for democrats

Provide one sound bite from the 2016 presidential campaign, and tell me how it impacted that candidate.

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd