What third variable may explain the observed correlation

Assignment Help Basic Statistics
Reference no: EM131724007

Question: The pennstate2 dataset on the companion website includes heights and the total number of ear pierces for each person in a sample of college students. The correlation between the two variables is 20.495. What third variable may explain this observed correlation? Explain how that third variable could create the negative correlation.

Reference no: EM131724007

Questions Cloud

What policy advocacy skills can social workers use to ensure : What policy advocacy skills can social workers use to ensure that appropriate evaluations are being conducted on policies?
Prepare journal entries to record the transactions : Prepare journal entries to record the following transactions entered into by Valente Company: Patton, Inc. returned merchandise worth $500
Define the business continuity plan requirements : In this section, students will address each of the following: Define the business continuity plan requirements, propose a solution, and justify the solution.
Example of economic or social regulations : Were the regulations of derivatives trading legislated by Congress in 2010 an example of economic or social regulations?
What third variable may explain the observed correlation : The pennstate2 dataset on the companion website includes heights and the total number of ear pierces for each person in a sample of college students.
Three characteristics of a job : Three characteristics of a job where external recruitment would be ideal. 2 advantaged/disadvantages of using each recruiting process?
How bad debts accounted for under the direct writeoff method : How are bad debts accounted for under the direct write-off method? What are the disadvantages of this method
Discuss incident-response policy to reduce network down time : The management at Gem needs you to formulate an incident-response policy to reduce network down time if future incidents occur
Discuss on high diets in fat cause heart disease : Suppose that in an observational study, it is observed that the risk of heart disease increases as the amount of dietary fat consumed increases.

Reviews

Write a Review

Basic Statistics Questions & Answers

  State appropriate null and alternative hypotheses

Perform the significance test at the α = 0.05 level, making sure to report the test statistic, degrees of freedom, and P-value. What is your conclusion?

  Find the mean volume shipped per trailer load

A manufacturing company ships its product in two different sizes of truck trailers. Each shipment is made in a trailer with dimensions 8 feet×10 feet×30 feet or 8 feet×10 feet×40 feet. If 30% of its shipments are made by using 30-foot trailers and..

  Confidence interval of the true mean of heartbeats

For a group of 10 men subjected to a stress situation, the mean number of heartbeats per minute was 126, and the standard deviation was 4. Find the 95% confidence interval of the true mean.

  Probability to enrolled in professor normal-s section

Fifteen weeks later we learn that Jasmine did, indeed, pass the course. What is the probability that she was enrolled in Professor Normal"s section?

  Measures of variation and center for specific data

Calculate the Measures of Center and Measures of Variation for the following data set representing the chest size of 20 bears in inches.

  A recent report indicated an average family of four 2

a recent report indicated an average family of four 2 parents and 2 children under the age of 16 spends 500 per month

  Compute the z values for both students

The mean salary for engineers with less than 5 years' experience is $60,000 with a standard deviation of $5,000. Compute the z values for both Rob and Rachel.

  Training program designed to improve study skills

Last fall, a sample of n = 36 freshman was selected to participate in a new 4-hour training program designed to improve study skills.

  Expects an acknowledgement from the receiver

A wireless data terminal has three messages waiting for transmission. After sending a message, it expects an acknowledgement from the receiver. When it receives the acknowledgement, it transmits the next message.

  Describe the typical score on given test

"I want a number that will describe the typical score on this test. Most did very well, some scored in the middle, and a very few did quite poorly."

  Condeacute nast traveler magazine conducts an annual survey

condeacute nast traveler magazine conducts an annual survey of its readers in order to rate the top 80 cruise ships in

  Acetaminophen content for a random sample

The mean acetaminophen content for a random sample of n = 41 tablets is603.3 mg. Assume that the population standard deviation is 4.9 mg.

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!

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