Question 15 20.364816 r=0.604 Y A regression was run to determine if there is a relationship between hours of study per week (z) and the test scores (y). The results of the regression were: y=ax+b a=5.799 b=26.65 < > Check Answer Use this to predict the final exam score of a student who studies 8.5 hours per week, and please round your answer to a whole number.
Question 15 20.364816 r=0.604 Y A regression was run to determine if there is a relationship between hours of study per week (z) and the test scores (y). The results of the regression were: y=ax+b a=5.799 b=26.65 < > Check Answer Use this to predict the final exam score of a student who studies 8.5 hours per week, and please round your answer to a whole number.
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:Question 15
r2=0.364816
r=0.604
A regression was run to determine if there is a relationship between hours of study per week (z) and the test
scores (y).
The results of the regression were:
y=ax+b
a=5.799
b=26.65
Check Answer
Use this to predict the final exam score of a student who studies 8.5 hours per week, and please round your
answer to a whole number.
esc.
2.
Y
1
< >
30%
F1
@
2
F2
#3
3
80
F3
$
4
a
F4
%
5
9
F5
MacBook Air
A
6
F6
&
Transcribed Image Text:Question 13
Formulas: np; √np(1 - p);
Here is the quick link to the scientific calculator, and from there, you may navigate to any online statistics
calculators using the "Content" tab on the upper-left-hand side.
Statistics students in Oxnard College sampled 9 textbooks in the Condor bookstore and recorded the number of
pages in each textbook and its cost. The bivariate data is shown below,
Number of Pages (x)
953
905
837
985
394
331
505
784
868
esc.
Click to Copy-and-Paste Data
A student calculates a linear model
y =
Check Answer
1
L
Cost(y)
90.77
85.45
88.33
104.65
38.46
26.79
55.45
72.56
89.12
Use the model above to estimate the cost when number of pages is 648
Cost = $
(Please show your answer to 2 decimal places.)
F1
p(1-p)
n
O
√n
(Please show your answers to two decimal places)
@
2
F2
#3
80
F3
$
4
a
F4
%
5
9
F5
MacBook Air
6
F6
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