The distribution of actual weights of 8 oz chocolate bars produced by a certain machine is normal with µ=8.1 ounces and σ=0.1 ounces. A sample of 5 of these chocolate bars is selected. What is the probability that their average weight is less than 8 ounces?Calculate Z score and probability using our calculator:
Z = -2.236
P(X < -2.236) = 0.012545
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