In the last homework you calculated a regression line for the height (sidewalk to roof) of notable tall buildings in America by the number of stories of the building (beginning at street level). Stories Height (in feet) 57 1050

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Chapter1: Starting With Matlab
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In the last homework, you calculated a regression line for the height (sidewalk to roof) of notable tall
buildings in America by the number of stories of the building (beginning at street level).
Stories Height (in feet)
57
1050
28
428
26
362
40
529
790
401
60
22
38
380
110
1454
100
1127
46
700
a. Do the data provide sufficient evidence at the 5% significance level that the slope is not zero?
State your null and alternative hypotheses.
Ho Select an answer v?v
H Select an answer v?v
b. test statistic t=
C. p-value =
(Hint: Enter 0 is less than 0.0001)
. Decision. Rejncthe nutnypolhesis
esc
FI
888
F4
FS
DII
F7
F8
%23
$
3
&
7
Q
W
tab
E
R
T
Y
caps lock
S
D
bift
Z
C
V
A
Transcribed Image Text:In the last homework, you calculated a regression line for the height (sidewalk to roof) of notable tall buildings in America by the number of stories of the building (beginning at street level). Stories Height (in feet) 57 1050 28 428 26 362 40 529 790 401 60 22 38 380 110 1454 100 1127 46 700 a. Do the data provide sufficient evidence at the 5% significance level that the slope is not zero? State your null and alternative hypotheses. Ho Select an answer v?v H Select an answer v?v b. test statistic t= C. p-value = (Hint: Enter 0 is less than 0.0001) . Decision. Rejncthe nutnypolhesis esc FI 888 F4 FS DII F7 F8 %23 $ 3 & 7 Q W tab E R T Y caps lock S D bift Z C V A
1000
1200
1400
400
600
800
fit
g Considering the first point in the table, what is the residual at that point?
h. What is the residual standard deviation?
I. Would this point be considered an outlier?
Ono
O yes
J. Could you Justlfy removing this from the data set?
OYes, it's an outlier and is probably incorrect and should be removed.
O Probably not unless I know that the measurement is inaccurate.
O Yes, it's messing up our analysis
O No, we never remove outliers
Hint: Help
Question Heip: Message instructor
esc
F3
F6
FB
%23
%24
2
&
4
6
8.
tab
Q
R
T
Y
caps lock
A
F
H
shift
V
control
option
command
B
N
Transcribed Image Text:1000 1200 1400 400 600 800 fit g Considering the first point in the table, what is the residual at that point? h. What is the residual standard deviation? I. Would this point be considered an outlier? Ono O yes J. Could you Justlfy removing this from the data set? OYes, it's an outlier and is probably incorrect and should be removed. O Probably not unless I know that the measurement is inaccurate. O Yes, it's messing up our analysis O No, we never remove outliers Hint: Help Question Heip: Message instructor esc F3 F6 FB %23 %24 2 & 4 6 8. tab Q R T Y caps lock A F H shift V control option command B N
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