2. With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded t he nearest dollar) and degree of customer satisfaction (on a scale of 1- 10 with a 1 being not at all satisfied and a 10 being extremely satisfied). The researcher only ncludes programs with comparable types of services. A sample of the data is provio pelow. dollars satisfaction 11 18 8 17 10
2. With the growth of internet service providers, a researcher decides to examine whether there is a correlation between cost of internet service per month (rounded t he nearest dollar) and degree of customer satisfaction (on a scale of 1- 10 with a 1 being not at all satisfied and a 10 being extremely satisfied). The researcher only ncludes programs with comparable types of services. A sample of the data is provio pelow. dollars satisfaction 11 18 8 17 10
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
![2. With the growth of internet service providers, a researcher decides to examine
whether there is a correlation between cost of internet service per month (rounded to
the nearest dollar) and degree of customer satisfaction (on a scale of 1 - 10 with a 1
being not at all satisfied and a 10 being extremely satisfied). The researcher only
includes programs with comparable types of services. A sample of the data is provided
below.
dollars satisfaction
11
6
18
8
17
10
15
4
9
9.
5
12
3
19
22
2
25
10
a. Compute the correlation coefficient.
b. Determine the equation of regression if the level of satisfaction is being
predicted.
c. What satisfaction level would the customers achieved if they are paying $20?
$8? $16?
d. Determine the equation of regression if the cost is being predicted.
e. How much would it cost to have a satisfaction level of 7?
f. Explain the predicting capability of the equation.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4e9b943f-3152-425c-92fe-2fbee9931a1b%2F46dfcc3c-ef58-4fdf-b8bb-7ff47bd9d826%2Fhcmgx0c_processed.png&w=3840&q=75)
Transcribed Image Text:2. With the growth of internet service providers, a researcher decides to examine
whether there is a correlation between cost of internet service per month (rounded to
the nearest dollar) and degree of customer satisfaction (on a scale of 1 - 10 with a 1
being not at all satisfied and a 10 being extremely satisfied). The researcher only
includes programs with comparable types of services. A sample of the data is provided
below.
dollars satisfaction
11
6
18
8
17
10
15
4
9
9.
5
12
3
19
22
2
25
10
a. Compute the correlation coefficient.
b. Determine the equation of regression if the level of satisfaction is being
predicted.
c. What satisfaction level would the customers achieved if they are paying $20?
$8? $16?
d. Determine the equation of regression if the cost is being predicted.
e. How much would it cost to have a satisfaction level of 7?
f. Explain the predicting capability of the equation.
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