User Account

All Pages

Draw a scatter diagram of the data

Assignment Help Basic Statistics
Reference no: EM132465166

X      Y

2.2   3.9

3.9.  1.4

3.    3.5

4.7    5

?(a) Draw a scatter diagram of the data.

Compute the linear correlation coefficient. The linear correlation coefficient for the four pieces of data is 

?(Round to three decimal places as? needed.)

?(b) Draw a scatter diagram of the data with the additional data point 

 (10.4,9.2). 

Compute the linear correlation coefficient with the additional data point. The linear correlation coefficient for the five pieces of data is  (Round to three decimal places as? needed.)

Comment on the effect the additional data point has on the linear correlation coefficient.

A. The additional data point weakens the appearence of a linear association between the data points.

B. The additional data point strengthens the appearence of a linear association between the data points.

C. The additional data point does not affect the linear correlation coefficient.

Explain why correlations should always be reported with scatter diagrams.

A. The scatter diagram is needed to see if the correlation coefficient is being affected by the presence of outliers.

B. The scatter diagram can be used to distinguish between association and causation.

C. The scatter diagram is needed to determine if the correlation is positive or negative.

Reference no: EM132465166

Questions Cloud

What is the value for the new mean : A sample of n = 5 scores has a mean of M = 12. If one person with a score of X = 8 is added to the sample, what is the value for the new mean?
Explain how bizcon could have positive net income : Discuss to management how BizCon could have positive net income and yet run out of cash.how at the end of the year, BizCon reported a favorable net income
Compute the linear correlation coefficient : Compute the linear correlation coefficient. The linear correlation coefficient for the four pieces of data is _______.
Prepare entries reflects adjustment required as of december : On August 1, Year 1, Bellisa Company issued a $30,000 5%, 1-year note to Citizens Bank. Which of the following entries reflects the adjustment required
Draw a scatter diagram of the data : Draw a scatter diagram of the data. Compute the linear correlation coefficient. The linear correlation coefficient for the four pieces of data is
What was the actual cost of the materials for the period : What was the actual cost of the materials for the period?Calculate your answer to the nearest whole £ and enter it in the blank space provided.
Autism spectrum disorder : In 2008, there were 507 children in Arizona out of 32601 who were diagnosed with Autism spectrum disorder (ASD) ("AUTISM AND DEVELOPMENT,'2008).
What was variable overhead expenditure variance for period : What was the variable overhead expenditure variance for the period?Indicate an adverse variance (if appropriate) by placing a minus sign
Determine the four star accrues income taxes : Determine the Four Star accrues income taxes using an estimated tax rate equal to 30% of the income for the month.Use of Account Balances as a Basis

Reviews

Write a Review

Basic Statistics Questions & Answers

  Analysis of variance of pharmaceutical drugs

Analysis of variance has long been used in providing evidence of the effectiveness of pharmaceutical drugs. Such evidence is required before the Food and Drug.

  Discuss poisson distribution probability

Assume that the number of Telephone calls arriving in an office during a 15minute period has a Poisson distribution with mean number of calls equal 5.

  Labels for the sample means

Create and attach a normal curve to this document with the following elements: the normal curve, a label of the average number of shoppers, and labels for the sample means of 441 and 446 shoppers. Include all the appropriate symbols.

  Determine the fallacy for the natural-gas fracking

Texas oilman T. Boone Pickens says that natural-gas fracking is perfectly safe and poses no threat to the nation's drinking water.

  Consider the following hypothetical circumstance

Consider the following hypothetical circumstance. Imagine that within the past three months The Body Builder magazine has added five additional pages of advertising to its weekly issue. These pages have been added on a test basis and were only inc..

  Perform the test of hypothesis

A random sample of five of these light bulbs had a mean lifetime of 520 hours and standard deviation of 50 hours. Perform the test of hypothesis at the a = .10

  Observed data contradict the hypothesis

Write down the null and alternate hypotheses.Do the observed data contradict the hypothesis? Formulate and test the appropriate hypotheses at the 5% level of significance. Use the critical value approach.

  Raise funds for operation feed the poor

1. In preparing a national promotional campaign to raise funds for operation feed the poor, the organizing committee examined previous records of donations to establish if age of a donor, in years, is a factor in the monetary size of the donation ..

  Synopsis of the binomial distribution

Please use the binomial calculator described in the synopsis of the binomial distribution to answer the following questions:

  Determine the probability that the two boys

Determine the probability that the two boys who play against each other in the first game will play against each other again in the fourth game.

  Compute the standard error of the sample mean for hrc

Compute the standard error of the sample mean for HRC.? What is the chance HRC finds a sample mean between $477 and $527?

  Determine the gain and phase margin of the system

Using a Nichols chart, determine the gain and phase margin of the system in Figure 10.43 with loop gain transfer function

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