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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 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 ......

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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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.)
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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