1. Analyze the data in Table AMS10.1 and do a statistical test with hypothesis. Kindly discuss the reason you selected a particular statistical test to compare the two independent groups of callers. 2. Suppose that instead of the research design described in the case, there were only 15 subscribers sampled, and the update process for each subscriber e-mail was measured for each of the two messaging systems. Suppose the results were organized in Table AMS10.1— making each row in the table a pair of values for an individual subscriber. Using these suppositions, reanalyze the Table AMS10.1 data and do a statistical test with hypothesis and please discuss the findings.
AMS communicates with customers who subscribe to cable television services through a special secured email system that sends messages about service changes, new features, and billing information to in-home digital set-top boxes for later display. To enhance customer service, the operations department established the business objective of reducing the amount of time to fully update each subscriber’s set of messages. The department selected two candidate messaging systems and conducted an experiment in which 30 andomly chosen cable subscribers were assigned one of the two systems (15 assigned to each system). Update times were measured, and the results are organized in Table AMS10.1. Email Interface1 4.13 3.75 3.93 3.74 3.36 3.85 3.26 3.73 4.06 3.33 3.96 3.57 3.13 3.68 3.63 Email Interface 2 3.71 3.89 4.22 4.57 4.24 3.90 4.09 4.05 4.07 3.80 4.36 4.38 3.49 3.57 4.74 1. Analyze the data in Table AMS10.1 and do a statistical test with hypothesis. Kindly discuss the reason you selected a particular statistical test to compare the two independent groups of callers. 2. Suppose that instead of the research design described in the case, there were only 15 subscribers sampled, and the update process for each subscriber e-mail was measured for each of the two messaging systems. Suppose the results were organized in Table AMS10.1— making each row in the table a pair of values for an individual subscriber. Using these suppositions, reanalyze the Table AMS10.1 data and do a statistical test with hypothesis and please discuss the findings.
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