Lenovo uses the​ ZX-81 chip in some of its laptop computers. The prices for the chip during the last 12 months were as​ follows: Month Price Per Chip Month Price Per Chip
January $1.80 July 1.80
February 1.67 August 1.83
March 1.70 September 1.70
April 1.85 October 1.65
May 1.90 November 1.70
June 1.87 December 1.75

a. Use a 2-month moving average on all the data and plot the averages and the prices.
b. Use a three-month moving average and add the three-month plot to the graph created in part (a).
c. Which is better (using the mean absolute deviation): The 2-month average or the 3-month average?
d. Compute the forecasts for each month using exponential smoothing, with an initial forecast for January of $1.80. Use α=0.1, then α=0.3, and finally α=0.5. Using MAD, which α is the best?

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< back to assignment attempts: 1 1 keep the highest: 1 / 2 2. determining opportunity cost juanita is deciding whether to buy a suit that she wants, as well as where to buy it. three stores carry the same suit, but it is more convenient for juanita to get to some stores than others. for example, she can go to her local store, located 15 minutes away from where she works, and pay a marked-up price of $102 for the suit: store travel time each way price of a suit (minutes) (dollars per suit) local department store 15 102 across town 30 88 neighboring city 60 65 juanita makes $42 an hour at work. she has to take time off work to purchase her suit, so each hour away from work costs her $42 in lost income. assume that returning to work takes juanita the same amount of time as getting to a store and that it takes her 30 minutes to shop. as you answer the following questions, ignore the cost of gasoline and depreciation of her car when traveling. complete the following table by computing the opportunity cost of juanita's time and the total cost of shopping at each location. store opportunity cost of time price of a suit total cost (dollars) (dollars per suit) (dollars) local department store 102 across town 88 neighboring city 65 assume that juanita takes opportunity costs and the price of the suit into consideration when she shops. juanita will minimize the cost of the suit if she buys it from the . grade it now save & continue continue without saving

(select all that apply) examples of email use that could be considered unethical include denying receiving an e-mail requesting that you work late forwarding a chain letter asking for donations to a good cause sending a quick message to your friend about last weekend sending your boss the monthly sales figures in an attachment setting up a meeting with your co-worker sharing a funny joke with other employees