User Account

All Pages

Relationship between economic status

Assignment Help Basic Statistics
Reference no: EM13844918

The scatterplot shows the relationship between economic status measured as a percentage of children in a neighborhood receiving reduced-fee lunch at school and the percentage of bike riders in the neighborhood wearing helmets. The average percentage of children receiving reduced-fee lunches is 30.8% with a standard deviation of 26.7%. The average percentage of bike riders wearing helmets is 38.8% with a standard deviation of 16.9%.

a) If R2 for the least-squares regression line is 72%, what is the correlation between the variables? (Give your answer to two decimal places.)

R =

b) Calculate the slope and intercept for the least-squares regression line for these data.

Slope =

Intercept =

c) What would the value of the residual be in a neighborhood where 45% of the children receive reduced-fee lunch and 42% of the bike riders wear helmets? (Give your answer to 2 decimal places).

Residual =

1465_relationship between economic status.jpg

Reference no: EM13844918

Questions Cloud

Assess how this company achieves a competitive advantage : Assess how this company achieves a competitive advantage using operations management. Provide examples found in the case study or outside sources to support your reasoning
Discuss the defenses that an employer may raise : Define and discuss the defenses that an employer may raise to a citation.
Why is there such a dramatic difference : Mr. Jacobs went to his daughter''s physician for mild asthma while visiting her home in California - Why is there such a dramatic difference?
Develop an intervention plan of how objectives can be met : Discuss which population is most affected by this Topic Area and why - Describe what impact this Topic Area has on the health of individuals.
Relationship between economic status : The scatterplot shows the relationship between economic status measured as a percentage of children in a neighborhood receiving reduced-fee lunch at school and the percentage of bike riders in the neighborhood wearing helmets.
Parameter weibull distribution : Let Y have a 3-parameter Weibull distribution, that is, Y has pdf and cdf in the following form with α > 0, γ > 0, θ > 0:
Improving mapreduce performance through data placement : Prepare a paper using IEEE report on Improving MapReduce Performance through Data Placement in Heterogeneous Hadoop Clusters
Analysis of the pros and cons of locating the facility : You have been asked to take the lead in identifying two possible locations for the facility in two different regions of the world and then prepare an analysis of the pros and cons of locating the facility in each of the two sites
Prepare the budgets for the fiscal year ending december : Prepare the following budgets for the fiscal year ending December 31, 2006 using the provided spreadsheets. Note: it is required to use the provided worksheets using Excel formulas.

Reviews

Write a Review

Basic Statistics Questions & Answers

  Tested for nonconformity

If 30 samples of 100 items are tested for nonconformity, and 95 of the 3,000 items are defective, find the upper and lower control limits for a p -chart.

  The us energy information agency reported that the mean

the u.s. energy information agency reported that the mean monthly household electric bill in the united states in 2007

  Advantages of using correlation coefficient

What advantage does correlation have over a cross-tab?

  Estimate the true percentage of acceptable fruit using a 99

the only fruit shop received a shipment of fruit and they would like to estimate the percentage of fruit which meets

  Construct a table of each value of the random variable x

q1. according to the statistical abstract of the united states there are 31.1 milshylions one-person households 38.6

  Note after 5o years of age both the mean and standard

question 1 a persons blood glucose level and diabetes are closely related. let x be a random variable measured in

  Probability anyone of seven is chosen as spokes person

A seven member committee of students is formed to study environmental issues. What is the likely hood that anyone of the seven is chosen as the spokes person?

  Hypotheses of this scenario of the restuarant franchises

Do sit down restuarant franchises and fast food franchises differ significantly in stock price? Specifically, is the average stock price for sit-down restaurants different from the average stock price for fast food restaurants?

  Assumed that it is reasonable to believe that the

a simple random sample of 12 e-readers of a certain type had the following minutes of battery life.287 311262 392 313

  Analyzing date and hypottesis testing

Raising chickens in commercial chicken farms is a growing industry, as there is a shift from red meat to more white meat. New Jersey Red Chickens are a favorite chicken and the Feed is Us company has a new chicken food that they claim is excellent..

  Computing probabilities

A retail grocer has decided to market organic "health foods" and will purchase a new line of products from each of two suppliers. Unknown to the grocer

  If the random variable z is the standard normal score and

if the random variable z is the standard normal score and a gt 0 is it true that pz lt -a pz gt a? why or why not?

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