Matt recently graduated from college and moved into his first apartment. He visits an electronics store to a new television for which he has saved 750 He is looking at TVs in his price range when he is approached by salespersonThe salesperson tells him about the current store promotion of no interest for one year on purchases of $1,000 or moreMatt knows that he could get a much larger TV for $1,000 and considers the offerShould he finance the larger TV and take advantage of this free money while it is available? What is your advice for Matt?

Farmers know that driving heavy equipment on wet soil compresses the soil and injures future crops. here are data on the "penetrability" of the same type of soil at two levels of compression. penetrability is a measure of how much resistance plant roots will meet when they try to grow through the soil. compressed soil 2.85 2.66 3 2.82 2.76 2.81 2.78 3.08 2.94 2.86 3.08 2.82 2.78 2.98 3.00 2.78 2.96 2.90 3.18 3.16 intermediate soil 3.17 3.37 3.1 3.40 3.38 3.14 3.18 3.26 2.96 3.02 3.54 3.36 3.18 3.12 3.86 2.92 3.46 3.44 3.62 4.26 use the data, omitting the high outlier, to give a 95% confidence interval for the decrease in penetrability of compressed soil relative to intermediate soil. compute degrees of freedom using the conservative method. interval: to