1. The tech support of a large software company is trying to improve its response time to the call-in help center. The call center receives many hundreds of calls each day. At this time, they are interested in improving the response time at a particularly busy time of day (7pm to 9pm eastern time). Rather than collect data on all calls during this time, a random sample of 75 calls each day during these hours are monitored for response time. The number of calls that are not answered by a tech support person within the first minute is recorded. The first 20 data points are in the file Response Time. a) Use JMP to provide the appropriate analysis of these data. b) Several changes were implemented after the initial data collection period to improve the response time during this (and other) time periods. Additional tech support staff were hired, the recorded message that all incoming calls hear first was modified, etc. The next 20 data points collected after implementing these changes are listed on the next page. Have the changes improved this aspect of this process? c) What is the first point in time that a signal of a process change has occurred? d) What is the next step for analysis of these data? Provide this analysis. e) Can you claim that sustained improvement has occurred? If so, quantify this improvement. 1. The tech support of a large software company is trying to improve its response time to the call-in help center. The call center receives many hundreds of calls each day. At this time, they are interested in improving the response time at a particularly busy time of day (7pm to 9pm eastern time). Rather than collect data on all calls during this time, a random sample of 75 calls each day during these hours are monitored for response time. The number of calls that are not answered by a tech support person within the first minute is recorded. The first 20 data points are in the file Response Time. a) Use JMP to provide the appropriate analysis of these data. b) Several changes were implemented after the initial data collection period to improve the response time during this (and other) time periods. Additional tech support staff were hired, the recorded message that all incoming calls hear first was modified, etc. The next 20 data points collected after implementing these changes are listed on the next page. Have the changes improved this aspect of this process? c) What is the first point in time that a signal of a process change has occurred? d) What is the next step for analysis of these data? Provide this analysis. e) Can you claim that sustained improvement has occurred? If so, quantify this improvement