Assume that the index on Day 13 closes at 12,300. Would this signal a buy or sell decision?

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Assume the following daily closings for the Dow Jones Industrial Average:

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Day DJIA Day DJIA
1 12,010 7 12,220
2 12,100 8 12,130
3 12,165 9 12,250
4 12,080 10 12,315
5 12,070 11 12,240
6 12,150 12 12,310

a. Calculate a four-day moving average for Days 4 through 12.

b. Assume that the index on Day 13 closes at 12,300. Would this signal a buy or sell decision?

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