nalysis Name: Date: Score: Section Exercise 10.3 1. SJS Company has been selling to retail customers in the Metro Manila area. They advertise extensively on radio, print ads, and in the internet. The owner would like to review the relationship between the amount spent on advertising expense (in P000s) and sales (in P000s). Below is information on advertising expense and sales for the last 9 months. Month Jan Advertising Expense 10 Sales Revenue Feb Mar Apr May June July Aug Sept 8 12 11 13 190 215 190 210 235 208 15 14 13 16 170 175 250 Find the coefficient of correlation. Determine at the 0.10 significance level whether the correlation in the population is greater than zero. Step 1: State the hypotheses. Ho: Hi: Step 2: The level of significance and critical region. a= Step 3: Complete the table and compute for the value of r and t. and tcritical = Month x x 22 x2 xy Jan Feb Mar Apr May Jun Jul Aug Sept Σχ= Σy= ΣΥ Σαν = Σx=- tcomputed= r = Step 4: Decision rule. Step 5: Conclusion. Chapter 10: Correlation and Regression Analysis Page 307 Name: Date: Section Exercise 10.3 Score: 2. AUS Rural Bank is studying the relationship between the mean account balance for individual accounts and the number of transactions per month. A sample of eight accounts revealed: 5 6 7 8 4 Customer 1 2 3 Mean Balance (P000s) 27 No. of Transactions 11 32 2 50 29 24 53 10 16 15 7 2 4 10 5 Name: 1. A used car price. Listed Car Age Selli Find the coefficient of correlation. Determine at the 0.01 significance level whether the correlation in the population is greater than zero. Step 1: State the hypotheses. Ho: Determine significanc Solution: Step 1: State t Ho: Hi: Step 2: The level of significance and critical region. a= Step 3: Complete the table and compute for the value of r and t. Customer 1 2 3 4 5 6 7 I 8 Στο Σχ= Συ= ΣY= r = Step 4: Decision rule. Step 5: Conclusion. Page 308 x² Hi: and tcritical = Step 2: The Step 3: Dete Step 4: Con Σxy => tcomputed = Step 5: Step 6 Chapter 10: Correlation and Regression Analysis Chapt
nalysis Name: Date: Score: Section Exercise 10.3 1. SJS Company has been selling to retail customers in the Metro Manila area. They advertise extensively on radio, print ads, and in the internet. The owner would like to review the relationship between the amount spent on advertising expense (in P000s) and sales (in P000s). Below is information on advertising expense and sales for the last 9 months. Month Jan Advertising Expense 10 Sales Revenue Feb Mar Apr May June July Aug Sept 8 12 11 13 190 215 190 210 235 208 15 14 13 16 170 175 250 Find the coefficient of correlation. Determine at the 0.10 significance level whether the correlation in the population is greater than zero. Step 1: State the hypotheses. Ho: Hi: Step 2: The level of significance and critical region. a= Step 3: Complete the table and compute for the value of r and t. and tcritical = Month x x 22 x2 xy Jan Feb Mar Apr May Jun Jul Aug Sept Σχ= Σy= ΣΥ Σαν = Σx=- tcomputed= r = Step 4: Decision rule. Step 5: Conclusion. Chapter 10: Correlation and Regression Analysis Page 307 Name: Date: Section Exercise 10.3 Score: 2. AUS Rural Bank is studying the relationship between the mean account balance for individual accounts and the number of transactions per month. A sample of eight accounts revealed: 5 6 7 8 4 Customer 1 2 3 Mean Balance (P000s) 27 No. of Transactions 11 32 2 50 29 24 53 10 16 15 7 2 4 10 5 Name: 1. A used car price. Listed Car Age Selli Find the coefficient of correlation. Determine at the 0.01 significance level whether the correlation in the population is greater than zero. Step 1: State the hypotheses. Ho: Determine significanc Solution: Step 1: State t Ho: Hi: Step 2: The level of significance and critical region. a= Step 3: Complete the table and compute for the value of r and t. Customer 1 2 3 4 5 6 7 I 8 Στο Σχ= Συ= ΣY= r = Step 4: Decision rule. Step 5: Conclusion. Page 308 x² Hi: and tcritical = Step 2: The Step 3: Dete Step 4: Con Σxy => tcomputed = Step 5: Step 6 Chapter 10: Correlation and Regression Analysis Chapt
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Transcribed Image Text:nalysis
Name:
Date:
Score:
Section Exercise 10.3
1. SJS Company has been selling to retail customers in the Metro Manila area. They advertise
extensively on radio, print ads, and in the internet. The owner would like to review the
relationship between the amount spent on advertising expense (in P000s) and sales (in
P000s). Below is information on advertising expense and sales for the last 9 months.
Month
Jan
Advertising Expense 10
Sales Revenue
Feb Mar Apr May June July
Aug Sept
8
12
11 13
190 215 190 210 235 208
15
14
13
16
170
175 250
Find the coefficient of correlation. Determine at the 0.10 significance level whether the
correlation in the population is greater than zero.
Step 1: State the hypotheses.
Ho:
Hi:
Step 2: The level of significance and critical region. a=
Step 3: Complete the table and compute for the value of r and t.
and tcritical =
Month
x
x
22
x2
xy
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sept
Σχ=
Σy=
ΣΥ
Σαν =
Σx=-
tcomputed=
r =
Step 4: Decision rule.
Step 5: Conclusion.
Chapter 10: Correlation and Regression Analysis
Page 307
Transcribed Image Text:Name:
Date:
Section Exercise 10.3
Score:
2. AUS Rural Bank is studying the relationship between the mean account balance for
individual accounts and the number of transactions per month. A sample of eight accounts
revealed:
5
6
7
8
4
Customer
1
2
3
Mean Balance (P000s)
27
No. of Transactions
11
32
2
50
29
24
53
10
16
15
7
2
4
10
5
Name:
1.
A used car
price. Listed
Car
Age
Selli
Find the coefficient of correlation. Determine at the 0.01 significance level whether the
correlation in the population is greater than zero.
Step 1: State the hypotheses.
Ho:
Determine
significanc
Solution:
Step 1: State t
Ho:
Hi:
Step 2: The level of significance and critical region. a=
Step 3: Complete the table and compute for the value of r and t.
Customer
1
2
3
4
5
6
7
I
8
Στο
Σχ=
Συ=
ΣY=
r =
Step 4: Decision rule.
Step 5: Conclusion.
Page 308
x²
Hi:
and tcritical =
Step 2: The
Step 3: Dete
Step 4: Con
Σxy =>
tcomputed =
Step 5:
Step 6
Chapter 10: Correlation and Regression Analysis
Chapt
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