The amount of sugar contained in 1-kg packets is actually normally distributed with a mean of μ = 1.03 kg and a standard deviation of o = 0.014 kg. a) What proportion of sugar packets are underweight? b) If an alternative package-filling machine is used for which the weights of the packets are normally distributed with a mean of u = 1.05 kg and a standard deviation of o= 0.016 kg, does this result in an increase or a decrease in the proportion of underweight packets?

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