I deleted my Excel file and ripped up my scratch paper on camera. If you do not complete both of these tasks, then you are subject to a 20% penalty on the exam.

A class of third graders is told that the assistant principal will be visiting their class to confirm their teacher’s reports of the students bad behavior. When the principal visits, the students behave perfectly.  This is an example of ________________________.

Your classmate is done wrangling their data and has staged 3 files, including one called data.csv. They want to commit their work to your group repo, but you want to make sure they didn’t accidentally delete any important variables. What command can they use to view the changes made only to data.csv when compared to the most recent commit’s version?

I posted a few items on yellowdig before the first exam.  One was marked as “Fair game for exams”.  Which of the descriptions below best describes that post?

A company is considering a lunch of a new product.  There are three potential designs at different price points.  The company only wants to produce one.  Sales of each design are thought to be linked to the broader performance of the economy in the next two years.  Their staff economist believes the probabilities of a good, fair, and poor market in that time span are .35, .40, and .25. Good Market Fair Market Poor Market Low Cost Design $55,000 $51,500 $14,500 Mid Cost Design $59,000 $42,000 $20,000 High Cost Design $72,000 $34,000 -$10,000 A consulting team that studies the market in great detail has offered to tell them the market condition for the next two years ahead of time, thus providing them with perfect information. What is the Expected Value of this Perfect Information? (Answer to the nearest whole number)

Below you are given data that form a forecast.  The forecast was made using a six week moving average.  Calculate the tracking signal    Period (weeks) Actual Forecast 1 198.75 2 199.75 3 200.73 4 201.81 5 202.73 6 203.45 7 205.93 201.20 8 206.95 202.40 9 209.77 203.60 10 212.48 205.11 11 214.17 206.88 12 214.54 208.79 13 216.40 210.64 14 218.93 212.38 15 220.88 214.38 16 222.84 216.23 17 225.04 217.96 18 227.43 219.77 19 228.95 221.92 20 231.46 224.01 21 233.98 226.10 22 236.73 228.28 23 239.54 230.60 24 241.37 233.02 25 242.26 235.34 26 244.27 237.56 27 246.65 239.69 28 246.79 241.80 29 248.04 243.48 30 250.58 244.90 31 252.18 246.43 32 254.91 248.09 33 257.36 249.86 34 257.77 251.64 35 258.18 253.47 36 258.95 255.16 37 259.44 256.56 38 261.84 257.77 39 264.82 258.92 40 266.73 260.17 41 268.03 261.66 42 270.31 263.30 43 271.09 265.19 44 273.59 267.14 45 274.60 269.09 46 276.51 270.72 47 278.78 272.35 48 281.11 274.15 49 283.24 275.95 50 284.96 277.97 51 286.00 279.87 52 286.24 281.77

PolyNovo is a biotech company specializing in artificial skin projects.  Last year they had a significant jump in sales in November.  they report sales in millions of US Dollars.  Calculate the MAD on their forecast for the four months of July to October.  Do the same for the two months after that sales jump (November and December).  By how much dose the MAD increase between the two periods? Month Actual Sales Management’s Forecast January 5.2 February 5.5 March 5.8 April 6.0 May 6.3 June 6.5 July 6.8 6.6 August 7.0 6.9 September 7.2 7.1 October 7.5 7.3 November 10.1 7.6 December 11.0 8.0 Note: The manager’s forecasts are available from July to December.

How do cognitive functions such as memory and learning change with age?

Which of the following is a sign of aging that is not readily apparent?

Discuss the role of mental health in the aging process.