The cross-tabulation data given below show the number of people who rated a customer service representative as friendly and polite based on whether the representative greeted them first. Complete parts a through d below. Friendliness/Politeness Staff Greeting No Yes No 13 16 4 Yes 20 ......
The cross-tabulation data given below show the number of people who rated a customer service representative as friendly and polite based on whether the representative greeted them first. Complete parts a through d below. Friendliness/Politeness Staff Greeting No Yes No 13 16 4 Yes 20 ......
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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![The cross-tabulation data given below show the number of people who rated a customer service representative as friendly and polite based on whether the
representative greeted them first. Complete parts a through d below.
Friendliness/Politeness
Staff Greeting No
Yes
No
13
4
Yes
16
20
.....
a. Write the hypotheses for the chi-square test for independence.
Ho: Greeting and Customer Service Rating are independent
H;: Greeting and Customer Service Rating are dependent
b. Find the expected frequencies.
Friendliness/Politeness
Staff Greeting No
No
Yes
Grand Total
9.30
7.70
17
Yes
36
16.30
24
(Type integers or decimals rounded to two decimal places as needed.)
19.70
Grand Total
29
53
c. Compute the chi-square statistic.
(Type an integer or decimal rounded to two decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F5e2015c0-c992-4023-8b51-ee09388f684e%2Fcece8b64-3cf5-4745-8bbe-95256c52baf9%2Fl43xf3_processed.png&w=3840&q=75)
Transcribed Image Text:The cross-tabulation data given below show the number of people who rated a customer service representative as friendly and polite based on whether the
representative greeted them first. Complete parts a through d below.
Friendliness/Politeness
Staff Greeting No
Yes
No
13
4
Yes
16
20
.....
a. Write the hypotheses for the chi-square test for independence.
Ho: Greeting and Customer Service Rating are independent
H;: Greeting and Customer Service Rating are dependent
b. Find the expected frequencies.
Friendliness/Politeness
Staff Greeting No
No
Yes
Grand Total
9.30
7.70
17
Yes
36
16.30
24
(Type integers or decimals rounded to two decimal places as needed.)
19.70
Grand Total
29
53
c. Compute the chi-square statistic.
(Type an integer or decimal rounded to two decimal places as needed.)
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