1. Determine the t critical values that will capture the desired t− curve area in each of the following cases: a. Central area = .95, sample size = 11 b. Central area = .95, df = 20 c. Central area = .99, ν = 50 d. Upper-tail area = .01, df= 25 e. Lower-tail area = .025, ν = 5 Note: Central tail indicates 2-sided, df is degree of freedom

Paula makes stained-glass windows and sells them to boutique stores. if her costs total $12,000 per year plus $4 per window for the frame. how many windows must she produce to earn a profit of at least $48,000 in one year if she sells the windows for $28 each? 1. define a variable for the situation. 2. write an inequality that represents her profit. note: revenue is money coming in. cost is money going out. profit is the difference between the revenue and the cost. in other words: revenue - costs profit 3.using words, describe how many windows she must sell to have a profit of at least $48,000.