The following cross-tabulation shows the number of people who rated a customer service representative as friendly and polite based on whether the representative greeted them first. a. Write the hypotheses for the chi-square test for independence. b. Find the expected frequencies. C. Compute the chi-square statisticising a level of significance of 0.01. d. Find the chi-square critical value and p-value and draw a conclusion.

The null hypothesis holds that staff friendliness and greetings are unrelated. Ha, the other view holds that staff friendliness and greetings are interdependent.

Define hypothesis.

A hypothesis is a statement that makes sense in light of the available information but hasn't been proved true or wrong. A hypothesis in statistics is a claim that will serve as the foundation for hypothesis testing (also known as a statistical hypothesis). A hypothesis in mathematics is an unproven claim that is backed up by all the information that is known as well as numerous weaker findings.

Given,

Cross-tabulation shows the number of people who rated a customer service representative as friendly and polite based on whether the representative greeted them first.

Hypothesis for the chi-square test for independence,

The null hypothesis holds that staff friendliness and greetings are unrelated.

Ha, the other view holds that staff friendliness and greetings are interdependent.

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