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: z table or t table) a. Select the hypotheses to test if the retailer needs to improve its services. O Hg: p = 0.90; HA: p 0.90 O Hg: p 2 0.90; HA: p < 0.90 O Hg: p s 0.90; HA: p > 0.90 b. What is the value of the appropriate test statistic? (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic

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: z table or t table) a. Select the hypotheses to test if the retailer needs to improve its services. O Hg: p = 0.90; HA: p 0.90 O Hg: p 2 0.90; HA: p < 0.90 O Hg: p s 0.90; HA: p > 0.90 b. What is the value of the appropriate test statistic? (Negative value should be indicated by a minus sign. Round intermediate calculations to at least 4 decimal places and final answer to 2 decimal places.) Test statistic

Name: c. Find the p-value.O p-value < 0.01O 0.01 s p-value < 0.025O 0.025 <
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Description: c. Find the p-value.O p-value < 0.01O 0.01 s p-value < 0.025O 0.025 < p-value < 0.05O 0.05 s p-value <0.10Opvalue 2 0.10d. At a = 0.05, what is the conclusion?O The management will take corrective actionO The management will not take corrective acti

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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