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

Statistic, difference between histogram and historigram

difference between histogram and historigram

Peanuts and cost accounting, EFF EX: Joe, you said you put in these peanuts...

EFF EX: Joe, you said you put in these peanuts because some people ask for them, but do you realise what this rack of peanuts is costing you? JOE: It ain''t gonna cost. ''sgonna be

What is Appropriation , What is Appropriation A legal endorsement for an ...

What is Appropriation A legal endorsement for an organization to make expenses for particular requirements from particular options available or approximated to be available durin

Management accounting, Q. CRSL has a large auditorium which can cater for ...

Q. CRSL has a large auditorium which can cater for 300 people and is ideal for formal balls and functions. The auditorium can also be reconfigured to cater for 100 people. The Sea

Normal curve and the standard deviation, What is the relationship between t...

What is the relationship between the normal curve and the standard deviation? Name and explain three special features of a normal distribution

Eye, the near point of hypermetropic person is 75cm if the person uses eyeg...

the near point of hypermetropic person is 75cm if the person uses eyeglasses having power +1.0 D,calculate the distance of distinct vision

Actual velocity, A boat is heading across a river at a velocity of 25 mph. ...

A boat is heading across a river at a velocity of 25 mph. The river is flowing downstream at 10 mph. What is the actual velocity of the boat?

Linear Programming Models), #This is a chance to perhaps incorporate some o...

#This is a chance to perhaps incorporate some of your experience, interests, and career business/management goals and ambitions within the context of an individual project paper.

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