Please correct the ones i got wrong

PA 13-7 (Static) Goop Inc. needs to order a raw material to make a special... Goop Inc needs to order a raw material to make a special polymer. The demand for the polymer is forecasted to be normally distributed with a mean of 250 gallons and a standard deviation of 100 gallons. Goop sells the polymer for $25 per gallon Goop purchases raw material for $10 per gallon and must spend $5 per gallon to dispose of all unused raw material due to government regulations (One gallon of raw material ylelds one gallon of polymer) If demand is more than Goop can make then Goop sells only what it has made and the rest of the demand is lost. Use Table 13.4 d If a part of the question specifies whether to use Table 13.4 or to use Excel, then credit for a correct answer will depend on using the specified method How many gallons should Goop purchase to maximize its expected profit? Use Table 13.4 a. 250 b 0.8413 C. 0.70 Suppose Goop purchases 150 gallons of raw material. What is the probability that it will run out of raw material? (Round your answer to 4 decimal places.) Suppose Goop purchases 300 gallons of raw material. What are the expected sales (in gallons)? Use Table 13.4 (Round your answer to 2 decimal places.) Suppose Goop purchases 400 gallons of raw material. How much should it expect to spend on disposal costs (in dollars)? Use Table 134 (Round your answer to 2 decimal places.) Suppose Goop wants to ensure that there is a 92 percent probability that it will be able to satisfy its customers' entire demand. How many gallons of the raw material should it purchase? Use Table 134 d. $ 764 65 e. 391 PA 13-8 (Static) Geoff Gullo owns a small firm that manufactures... Geoff Gullo owns a small firm that manufactures "Gullo Sunglasses". He has the opportunity to sell a particular seasonal model to Land's Start, a catalog retailer Geoff offers Land's Start two purchasing options. Use Table 13.4 warded - Option 1 Geoff offers to set his price at $65 and agrees to credit Land's Start 553 for each unit Land's Start returns to Geoff at the end of the season (because those units did not sell). Because styles change each year, there is essentially no value in the returned merchandise Option 2 Geoff offers a price of $55 for each unit, but returns are no longer accepted. In this case, Land's Start throws out unsold units at the end of the season This season's demand for this model will be normally distributed with a mean of 200 and a standard deviation of 125 Land's Start will sell those sunglasses for $100 each Geoff's unit production cost is $25 ces b If a part of the question specifies whether to use Table 13.4 or to use Excel, then credit for a correct answer will depend on using the specified method. How much would Land's Start buy if it chose opton 1? Use Table 134 and round-up rule 2,825 (Round your answer up to a whole number) How much would Land's Start buy if it chose option 2? Use Table 134 and round-up rule 185 (Round your answer up to a whole number) Which option will Land's Start choose? Use Table 134 Option 1 Option 2 (Round your answer to 2 decimal places) Expected Inventory 101.41 35.63 Expected sales 180.83 13271 Expected profit 5,112 26 3,171 d. Suppose Land's Start chooses option 1 and orders 275 units What is Geoff Gullo's expected profit? Use Table 13.4 Do not round intermediate $ 5,907 A project consists of three tasks. A. B. and C. Task A is known to take five days for sure Tasks B and Care each dependent on AB takes five days takes seven days with a probability of 0.5 and three days with a probability of 0.5 What is the expected completion time of the project? warded ed 8 Days 10 Days 11 Days 12 Days