In January 2019, the Lufthansa Innovation Hub (LIH) enetered its first collaboration with INSEAD, Singapore. Collaborative learning is a good driver of growth in the current global market. Suppose from a random sample of six employees at one division of the LIH that uses collaborative learning, the mean output was found to be 76.02 and the sample standard deviation was 2.3. For an independent random sample of eight employees in another LIH division that does not use collaborative learning, the sample mean and standard deviation were 71.86 and 8.5, respectively. Estimate with 99% confidence the difference between the two population mean output; do not assume equal population variances.