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1. Draw histograms of five category sales (Chocolate, DVD, Magazine, Soda, Hot dogs) using 10 bins for each chart. (2 points for each; Total 10points)

1. Draw histograms of five category sales (Chocolate, DVD, Magazine, Soda, Hot dogs) using 10 bins for each chart. (2 points for each; Total 10points) 

2. Report Descriptive Stats of the five variables using Data Analysis tools. Then, connected to the histogram on the above question 1, describe the distribution of each variable including central tendency and the shape of distribution (e.g., right or left skewed, or symmetric, etc). (2 points for each; total 10 points)

3. Draw a scatter plot between hot dog sales and soda sales. Assuming that there is a positive relationship between the two category sales, draw a 'linear' trend line over the scatter chart and show the equation over the chart using the trendline options. Describe the relationship between the two category sales including the meaning. (10 points)

4. Draw a time-series chart of the total sales of five categories over 30 weeks (Note: you need to get the sum of five category sales for each week using the 'sum' function). Put a linear trendline over the chart and the equation of the line. Describe the trend of the sales whether the sales is increasing or decreasing over the weeks or where you see fluctuations of the sales. Explain what the slope on the equation means in this chart. (20 points)

Week Chocolate DVDS Magazines Soda Hot Dogs
1 857 $5,820 $3,374 $3,036 $2,564
2 1,050 $8,656 $3,821 $3,589 $2,615
3 863 $6,749 $2,857 $3,279 $2,512
4 933 $5,580 $3,284 $3,981 $2,705
5 905 $8,534 $3,923 $3,411 $2,386
6 901 $6,837 $3,837 $3,484 $2,977
7 597 $7,794 $2,713 $3,498 $2,946
8 1,185 $8,708 $3,375 $3,169 $2,729
9 565 $8,892 $3,674 $3,660 $2,977
10 964 $6,338 $2,640 $3,797 $2,322
11 982 $7,258 $2,926 $3,201 $2,939
12 658 $5,468 $2,360 $3,738 $2,648
13 961 $8,690 $3,466 $3,374 $2,619
14 691 $7,054 $2,888 $3,371 $2,449
15 695 $8,988 $2,433 $3,211 $2,589
16 1,065 $5,658 $2,085 $3,622 $2,919
17 851 $6,781 $3,392 $3,812 $2,533
18 636 $5,423 $3,714 $3,458 $2,590
19 989 $7,763 $2,534 $3,101 $2,596
20 1,102 $5,893 $2,456 $3,687 $2,581
21 811 $8,391 $3,308 $3,771 $2,376
22 766 $5,631 $3,009 $3,641 $2,341
23 777 $8,995 $2,395 $3,627 $2,667
24 625 $5,864 $2,430 $3,303 $2,410
25 560 $8,927 $3,065 $3,574 $2,107
26 970 $7,615 $3,716 $3,704 $2,623
27 888 $5,373 $3,800 $3,424 $2,098
28 525 $5,845 $3,164 $3,624 $2,793
29 675 $5,986 $3,241 $3,117 $2,235
30 1,113 $8,049 $3,925 $3,611 $2,865

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