In the last homework, you calculated a regression line for the height (sidewalk to roof) of notable tallbuildings in America by the number of stories of the building (beginning at street level).Stories Height (in feet)5710502842826362405297904016022383801101454100112746700a. 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?vH Select an answer v?vb. test statistic t=C. p-value =(Hint: Enter 0 is less than 0.0001). Decision. Rejncthe nutnypolhesisescFI888F4FSDIIF7F8%23$3&7QWtabERTYcaps lockSDbiftZCVA 100012001400400600800fitg 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?OnoO yesJ. 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 analysisO No, we never remove outliersHint: HelpQuestion Heip: Message instructorescF3F6FB%23%242&468.tabQRTYcaps lockAFHshiftVcontroloptioncommandBN

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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

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

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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Concept explainers

Correlation

Correlation defines a relationship between two independent variables. It tells the degree to which variables move in relation to each other. When two sets of data are related to each other, there is a correlation between them.

Linear Correlation

A correlation is used to determine the relationships between numerical and categorical variables. In other words, it is an indicator of how things are connected to one another. The correlation analysis is the study of how variables are related.

Regression Analysis

Regression analysis is a statistical method in which it estimates the relationship between a dependent variable and one or more independent variable. In simple terms dependent variable is called as outcome variable and independent variable is called as predictors. Regression analysis is one of the methods to find the trends in data. The independent variable used in Regression analysis is named Predictor variable. It offers data of an associated dependent variable regarding a particular outcome.

Question

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
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4
6
8.
tab
Q
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caps lock
A
F
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V
control
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B
N

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