Question
8.A quality survey asked recent customers of their experience at a local department store.One question asked for the customers rating on their service using categorical
8.A quality survey asked recent customers of their experience at a local department store.One question asked for the customers rating on their service using categorical responses of average, outstanding, and exceptional.Another question asked for the applicant's education level with categorical responses of Some HS, HS Grad, Some College, and College Grad.The sample data below are for 700 customers who recently visited the department store.
Education
Quality Rating
Some HS
HS Grad
Some College
College Grad
Average
55
80
50
35
Outstanding
60
105
65
70
Exceptional
35
65
35
45
Using a level of significance of 0.01, is there evidence to suggest that the customer's Education level and Quality Rating are independent?In other words, is there a relationship or is there NO relationship between Education and Quality Rating?
a.State the Null and Alternative hypothesis.
b.What is the statistic you would use to analyze this?
c.State your decision rule:
d.Show your calculation:
e.What is your conclusion?
Quality Rating and Education level are independent
OR
Quality Rating and Education level are NOT independent
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