Buskirk construction buys on terms of 2/15, net 60 days. it does not take discounts, and it typically pays on time, 60 days after the invoice date. net purchases amount to $650,000 per year. on average, how much "free" trade credit does the firm receive during the year? (assume a 365-day year, and note that purchases are net of discounts.)a. $31,253b. $27,781c. $31,788d. $26,712e. $22,705

Ur environment is very sensitive to the amount of ozone in the upper atmosphere. the level of ozone normally found is 4.04.0 parts/million (ppm). a researcher believes that the current ozone level is not at a normal level. the mean of 2525 samples is 4.44.4 ppm with a standard deviation of 0.80.8. assume the population is normally distributed. a level of significance of 0.020.02 will be used. make the decision to reject or fail to reject the null hypothesis. answer tables