A baking powder is sold in packets with an advertised mean weight of 1.50 kg. A consumer group wants to check the accura

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answerhappygod
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A baking powder is sold in packets with an advertised mean weight of 1.50 kg. A consumer group wants to check the accura

Post by answerhappygod »

A baking powder is sold in packets with an advertised mean
weight of 1.50 kg. A consumer group wants to check the accuracy of
the advertised mean and takes a sample of 49 packets finding an
average weight of 1.49 kg. and a standard deviation of 140 grams.
The standard deviation of the sample mean is _____
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