# 2 ?s Calculate pearsons r and linear regression equation (see word doc)

1. Calculate Pearson’s r and the best-fit linear regression equation for the following two variables. 2. Nic wants to know if students grades in Quantitative Statistical Analysis I are influenced by class attendance and/or students grade level.Thus, Nic recorded the statistics grades for each student (traditional 0 to 100%) and put them in the table below. (See Word doc attached). Must show all work.
assignment_8.docx

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Assignment #8 Due by 11:55pm Sunday
SHOW ALL WORK!!
1. Calculate Pearsons r and the best-fit linear regression equation for the following two
variables.
x
2
6
3
4
7
5
5
3
Question 2 is on next page (below)
y
3
11
6
6
12
2
10
9
Nic wants to know if students grades in Quantitative Statistical Analysis I are influenced
by class attendance and/or students grade level. Thus, Nic recorded the statistics grades
for each student (traditional 0 to 100%) and put them in the table below.
Sophomore
Junior
Freshman
X
Class Attendance
Good
X
2
X
X
2
X
Senior
X
2
X
75
83
92
87
95
69
74
89
88
96
71
97
74
73
72
99
93
80
79
83
99
70
82
64
71
81
70
71
59
68
73
72
71
71
68
79
43
70
74
65
X2
?
X
Poor
(missed
more
than 6
classes)
?
X
a. State in words the null and alternative hypotheses.
b. What are your df (you should identify 5 dfs)? What are your critical Fs (there
should be 3)?
c. What are the values of your observed Fs (there should be 3)?
d. Based on the above information, would you reject H0, or fail to reject it? Why?

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