Linear regression, Basic Statistics

Assignment Help:

Question:

Students in a science class have just received their grades on the first test.  The instructor has provided information about the first test grades in some previous classes as well as the final average for the same students.  Some of these grades have been sampled and are as follows:

Student

1

2

3

4

5

6

7

8

9

1st Test Grade

98

77

88

80

96

61

66

95

69

Final Average

93

78

84

73

84

64

64

95

76

a) Develop a linear regression model that can be used to predict the final course average based on the first test grade for these nine students.  Provide the correct independent and dependent variables and provide the linear regression relationship in terms of these independent and dependent variables.

b)  Predict the final average of a student who made an 83 on the first test. 

c) Would you recommend using this relationship for forecasting the final averages?  Why?  Base your recommendation on analytical reasons. 

d)  Suppose a student scored a 41 on the first test.  Predict the final average of a student who had this score?  What cautions would you recommend about using this linear regression relationship for predicting a final average?


Related Discussions:- Linear regression

Biostatistics, when testing hypothesis is the level of significanc the type...

when testing hypothesis is the level of significanc the type error I?

Managerial accounting homework, Your friend Jose is trying to decide whethe...

Your friend Jose is trying to decide whether to buy or lease his next vehicle. He has gathered information about each option but is not sure how to compare the alternatives. Purcha

#tiMEDIANtle.., #quHOW TO MAKE ASSIGMENT ON MEDIANestion..

#quHOW TO MAKE ASSIGMENT ON MEDIANestion..

Impact of government regulation on managerial decision, Impact of governme...

Impact of government regulation on managerial Decision making Impact of government regulation on managerial Decision making how methods of control can influence market prices.

Calculate the monopoly profits and probability , Each firm in a competitive...

Each firm in a competitive research industry can undertake one project at a constant cost, f = $960 to try and develop a certain new product. The inverse demand curve for the new

Calculate operational variances -planning variances, You have recently join...

You have recently joined XYZ, an international company that produces a wide range of office supplies and stationary goods. In your new role as Group Management Accountant your firs

Absorption overheads, Give a brief discussion of the existing traditional ...

Give a brief discussion of the existing traditional method of absorbing overheads

Applying missing data, For this assignment, you will have to review each co...

For this assignment, you will have to review each column and make a decision for how to adjust for the missing data. After you correct for missing data in each column, please des

Write Your Message!

Captcha
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