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Erva is a manager in charge of customer satisfaction. Customers who call her company's support line are asked if they were satisfied with the service they received at the end of each call. Customers hear music while they are on hold, and Erva wonders if the genre of music has any impact on satisfaction. She plans on randomly assigning customers to hear either jazz or classical, and she'll test if the proportion who say they were satisfied is significantly different between the groups. Which of the following is an appropriate set of hypotheses for Erva's significance test?

Erva is a manager in charge of customer satisfaction Customers who call her companys support line are asked if they were satisfied with the service they receive class=

Respuesta :

The appropriate hypothesis for her test are as follows:

[tex]H_0: p_j = p_c[/tex]

[tex]H_1: p_j \neq p_c[/tex]

What is the hypothesis tested?

She tests if the proportion who say they were satisfied is significantly different between the groups, hence:

  • At the null hypothesis, we test if the proportion is not significantly different, that is: [tex]H_0: p_j = p_c[/tex].
  • At the alternative hypothesis, we test if the proportion is significantly different, that is: [tex]H_1: p_j \neq p_c[/tex].

More can be learned about hypothesis tests at https://brainly.com/question/24302053

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