Ans a) Mean fish weight of catch of 6 = total weight/6 = 15.8/6 = 2.6 ans.
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Ans b)
Population mean
Population sd
Sample size n = 6
To find the probability that the mean weight is greater than the mean of those we caught
we find to find z-score first:
P(Z > 1.96) = 1 - P(Z < 1.96) = 1 - 0.9750 = 0.0250 ans.
Explanation: we can find it using excel function: = NORM.S.DIST(1.96,TRUE) = 0.9750
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Ans C) This is not particularly unusual because the mean weight of your fish is only 0.4 pounds above the population average.
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