Reference no: EM132465168
Use the given data to complete parts? (a) and? (b) below.
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 left parenthesis 10.4 comma 9.3 right parenthesis(10.4,9.3).
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 does not affect the linear correlation coefficient.
B.The additional data point weakens the appearance of a linear association between the data points.
C.The additional data point strengthens the appearance of a linear association between the data points.
Explain why correlations should always be reported with scatter diagrams.
A.The scatter diagram is needed to determine if the correlation is positive or negative.
B.The scatter diagram is needed to see if the correlation coefficient is being affected by the presence of outliers.
C.The scatter diagram can be used to distinguish between association and causation.
|
Determining the standard deviation of 1 years
: A manufacturer knows that their items have a normally distributed lifespan, with a mean of 10.5 years, and standard deviation of 1 years.
|
|
Compute the probability that either a occurs without b
: Compute the probability that either A occurs without B occurring or A and B both occur.
|
|
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).
|