"Secret shoppers" are often employed by retailers to randomly rate the customer service quality of their employees. One such retailer has just received ratings for 15 of their employees. Ratings are measured on a scale of 1 to 5 (5 being the highest). The retailer sets a value of 3 as "good." The retailer wants to determine if the entire staff is operating at a t-Test: One-Sample Mean (rating) 2.88 Variance 2.41 Observations 15 "good" level, or at some other level. The retailer wants to be 90% confident that the results are true and not a result of random chance. The retailer conducts a one-sample, t-test (see results in K2:M7). t-statistic -0.30 P(t T) two-tail 0.766 #3 Questions What is the sample size? According to the case, what should be the Hypothesized Mean (M)? Enter a numeric value. 1 3 What is the null hypothesis (Ho) of this test? [select] 3 What is the alternative hypothesis (H,) of this test? 4 [select] 4 Calculate the difference between the Sample Mean and the Hypothesized Mean? (X - M)

"Secret shoppers" are often employed by retailers to randomly rate the customer service quality of their employees. One such retailer has just received ratings for 15 of their employees. Ratings are measured on a scale of 1 to 5 (5 being the highest). The retailer sets a value of 3 as "good." The retailer wants to determine if the entire staff is operating at a t-Test: One-Sample Mean (rating) 2.88 Variance 2.41 Observations 15 "good" level, or at some other level. The retailer wants to be 90% confident that the results are true and not a result of random chance. The retailer conducts a one-sample, t-test (see results in K2:M7). t-statistic -0.30 P(t T) two-tail 0.766 #3 Questions What is the sample size? According to the case, what should be the Hypothesized Mean (M)? Enter a numeric value. 1 3 What is the null hypothesis (Ho) of this test? [select] 3 What is the alternative hypothesis (H,) of this test? 4 [select] 4 Calculate the difference between the Sample Mean and the Hypothesized Mean? (X - M)

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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