You need to decide whether you should invest in a particular stock. You would like to invest if the price is likely to rise in the long run. You have data on the daily average price of this stock over the past 12 months. Your best action to determine if there is a significant trend is toa. estimate a least square trend model. b. perform exponential smoothing. c. compute the MAD statistic. d. compute moving averages.

c. compute the MAD statistic

Step-by-step explanation:

Compute the mad statistic since market is govern by random psychology of people and all factor affecting the stock price are not accountable making prediction difficult.

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step-by-step explanation:

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= 5

step-by-step explanation:

to find the 15th term substitute n = 15 into the nth term formula

= (- 3 × 15 ) + 50 = - 45 + 50 = 5