Assumptions of the simple linear regression

Reference no: EM131821390

Consider the following data on y = number of songs stored on an MP3 player and x = number of months the user has owned the MP3 player for a sample of 15 owners of MP3 players.

1708_Construct a scatterplot of the data.png

a. Construct a scatterplot of the data. Does the relationship between x and y look approximately linear? b. What is the equation of the estimated regression line?

c. Do you think that the assumptions of the simple linear regression model are reasonable? Justify your answer using appropriate graphs.

d. Is the simple linear regression model useful for describing the relationship between x and y? Test the relevant hypotheses using a significance level of .05.

Reference no: EM131821390

Questions Cloud

How much more bottom line profit will the firm have : A company has the opportunity to sell 1,000 extra units of product to a new customer. How much more bottom line profit will the firm have if it makes the sale?

What is meant by cybersecurity for critical infrastructures : Where have past state government administrations supported or fallen short in promoting cybersecurity for critical infrastructures

Describe how job order cost system facilitates understanding : Describe how a job order cost system facilitates understanding how much it cost to produce a given unit of product for example, a machine or a house.

Appropriate hypotheses using a significance : Do the data provide convincing evidence that the proportions in each of the number of checked bags categories is not the same before

Assumptions of the simple linear regression : Do you think that the assumptions of the simple linear regression model are reasonable? Justify your answer using appropriate graphs.

How does the use of ratios and percentages help us : How does the use of ratios and percentages help us to significantly enhance our understanding of financial statements - more so than just looking at raw number?

Mean performance on the wechsler memory scale : Based on these results, is there evidence that taking 40 mg of ginkgo three times a day is effective in increasing mean performance on the Wechsler Memory Scale

role of security and privacy in the EA program : What is your understanding of the role of security and privacy in the EA program and in the Enterprise Architecture itself

Discuss corporate governance framework in state corporations : Evidently, there is need to rationalize the corporate governance framework in state corporations

User Account

All Pages