A retailer is looking to evaluate its customer service. Management has determined that if the retailer wants to stay competitive, then it will have to have at least a 90% satisfaction rate among its customers. Management will take corrective actions if the satisfaction rate falls below 90%. A survey of 1,200 customers showed that 1,068 were satisfied with their customer service.(You may find it useful to reference the appropriate table:ztableorttable)

a.Select the hypotheses to test if the retailer needs to improve its services.

multiple choice 1

• A. H₀:p= 0.90;H_A:p 0.90
• B. H₀:p 0.90;H_A:p< 0.90
• C. H₀:p 0.90;H_A:p> 0.90

b.What is the value of the appropriate test statistic?(Negative value should be indicated by a minus sign. Round final answer to 2 decimal places.)

Test Statistic__________

c.Find thep-value.

multiple choice 2

• A. p-value < 0.01
• B. 0.01 p-value < 0.025
• C. 0.025 p-value < 0.05
• D. 0.05 p-value < 0.10
• C. p-value 0.10

d.At= 0.05, what is the conclusion?

multiple choice 3

• A. The management will take corrective action
• B. The management will not take corrective action