NEED SOLUTION WITHIN 40/50 MINUTES WITH STEP BY STEP APPROACH to get UPVOTE.

The concentration of active ingredients in a liquid detergent can be affected by the catalyst used in the manufacturing process. Ten measurements of the concentration were taken with two types of catalyst. Here are the data obtained: Catalyst 1: 57.9 66.2 65.4 65.3 62.6 67.6 63.7 67.2 65.2 71.0 Catalyst 2: 66.4 71.7 70.3 69.3 64.8 69.6 68.6 69.4 65.3 68.8 Let / and /2 be the average concentration of active ingredients resulting re- spectively from the use of catalyst 1 or 2. Construct a 95% confidence interval for /1 - /2 assuming the two variables are normally distributed with unknown, but assumed equal, variances. Comment on this result