For the polynomial regression model: Select one: A. the techniques for estimation and inference developed for multiple regression can be applied. B. the critical values from the normal distribution have to be changed to 1.962, 1.963, etc. C. you need new estimation techniques since the OLS assumptions do not apply any longer. D. you can still use OLS estimation techniques, but the t-statistics do not have an asymptotic normal distribution.

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.