This question from Financial statistics

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Exercise 3 A stock prices $(t) have been observed over a time interval divided into 3 periods based on 6 independent scenarios where observations for each scenario are listed in the following table scenario 5'1 ml 50 $ (:92 120 $ (:13 90 $ (04 80 $ (05 95 $ 006 100 $ Under signicance level 5% and the return rate K(0,3)sub_jecting to a normal population, 1) Test that \"Ml-3) = 16% against \"K(0.3) 16% 2) Test that 01((03) = 60/15 against Ugw'g) 6%