20 23 36 16 47 22 22 34 14 27 23 20 45 27 9. 24 39 23 91 22 42 12 84 18 46 18 45 22 90 13 54 22 45 18 90 16 54 19

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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b) The p-value is:
c) Based on this, we
Reject Ho
Fail to reject Ho
d) Which means
There is sufficient evidence to show a that
significant correlation exists.
There is not sufficient evidence show that a
significant correlation exists.
e) Write the regression equation (in terms of income = z)
in this form:
y = slope'x + y-intercept
ý =
f) To predict what diameter a child would draw a nickel
given family income, it would be most appropriate to:
Use the regression equation
Use the mean
Use the P-Value
Transcribed Image Text:b) The p-value is: c) Based on this, we Reject Ho Fail to reject Ho d) Which means There is sufficient evidence to show a that significant correlation exists. There is not sufficient evidence show that a significant correlation exists. e) Write the regression equation (in terms of income = z) in this form: y = slope'x + y-intercept ý = f) To predict what diameter a child would draw a nickel given family income, it would be most appropriate to: Use the regression equation Use the mean Use the P-Value
A group of children were asked to draw a circle the size of
a nicket, without having a nickel to see. In the data below,
x= Incomes (in thousands of $) of the the family and y= the
diameter of the circle drawn. Test for a significant
correlation between income and drawn nickel size.
Income (thousands of $) Coin size (mm)
33
25
20
23
36
16
47
22
22
34
14
27
23
20
45
27
24
39
23
91
22
42
12
84
18
46
18
45
22
90
13
54
22
45
18
90
16
54
19
You can copy the data into StatCrunch, Excel, or Google
Sheets, by highlighting the data, right-clicking, and
selecting Copy (or Ctrl • c), then open a StatCrunch, Excel,
or Google Sheets spreadsheet, click on the first cell, and
right-clicking and selecting Paste (or Ctri + v).
Test the claim that there is significant correlation at the
0.02 significance level. Retain at least 3 decimals on all
values.
a) Identify the correct hypotheses.
Họ:r = 0
HA:r +0
Ho:4 = 0
Transcribed Image Text:A group of children were asked to draw a circle the size of a nicket, without having a nickel to see. In the data below, x= Incomes (in thousands of $) of the the family and y= the diameter of the circle drawn. Test for a significant correlation between income and drawn nickel size. Income (thousands of $) Coin size (mm) 33 25 20 23 36 16 47 22 22 34 14 27 23 20 45 27 24 39 23 91 22 42 12 84 18 46 18 45 22 90 13 54 22 45 18 90 16 54 19 You can copy the data into StatCrunch, Excel, or Google Sheets, by highlighting the data, right-clicking, and selecting Copy (or Ctrl • c), then open a StatCrunch, Excel, or Google Sheets spreadsheet, click on the first cell, and right-clicking and selecting Paste (or Ctri + v). Test the claim that there is significant correlation at the 0.02 significance level. Retain at least 3 decimals on all values. a) Identify the correct hypotheses. Họ:r = 0 HA:r +0 Ho:4 = 0
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