269. Modify an essay's format as instructed.

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Running head: EVALUATING IMPROVEMENTS TO OPERATIONS Evaluating Improvements to Operations Student Name Institution Affiliation 1 EVALUATING IMPROVEMENTS TO OPERATIONS 2 Evaluating Improvements to Operations A z-test was used in the evaluation because two samples were being compared. The test was to be used to determine if after improving operations by the company call center, a difference was observed and whether the new approach is meeting the specifications of the customer. The comparison was, thus, between the new call time and the old call time at .05 level of significance. The null hypothesis is that there were similarities in the sample averages between the new time and the old time, while the alternative hypothesis is that the sample average for the new and old call approaches are different. The first statistical analysis was to determine whether there was a significant difference between the old and new call approach based on the null hypothesis and alternative hypothesis defined above. From the statistical analysis, the t value was found to be 5.296. Comparing it to the critical value at 0.05% significance level, the critical value was found to be 3.985; therefore, the t-value (5.296) was higher which indicates that there was a significant difference between the old call approach and the new call. From this conclusion, the alternative hypothesis (the sample average for the new and old call approach are different) is applied. A forecast equation was also established using call quality and the new call time. To achieve this, a hypothesis test was applied by utilizing the regression formula Y=a + bz which was used to estimate the call time where z was the code quality which can be 1 or 0. From the calculation, the b-value was found to be 0.0698, while the a-value was 7.986. Hence, the forecast equation for the new call was determined to be Y= 7.986 + (Z*0.0698). It means that if there is a defect, the z value is 1, and the call time will be Y=7.986 + (1*0.0698). EVALUATING IMPROVEMENTS TO OPERATIONS 3 The evaluation indicates that the sample means for call time is Y=7.986. In determining customer approval whose preference is a call not taking more than 7 minutes, a Z-test was conducted. The Ho = 7, while H1≠ 7. The analysis indicated that z value observed was greater than the z value recorded; hence, the alternative hypothesis (uy is not equal to 7) was considered. C Introduction: The definition of the key concepts might use in this report. The topic of the report. What is the problem. And what are this report for. Discussion: The same calculation as the sample I provide. Conclusion: The summarize of the result in the discussion section. Your recommendation for solving this issue.3
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Running head: EVALUATING IMPROVEMENTS TO OPERATIONS

Evaluating Improvements to Operations
Student Name
Institution Affiliation

1

EVALUATING IMPROVEMENTS TO OPERATIONS

2

Introduction
Key concepts
The null hypothesis is that there were similarities in the sample averages between the
new time and the old time, while the alternative hypothesis is that the sample average for the
new and old call approaches are different.
The topic of the report, problem and its purpose
A z-test was used in the evaluation because two samples were being compared. The
test was to be used to determine...


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