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A sample of 12 packages of chips is chosen from a shipment in which the weights of the packages are known to be normally distributed.

"A sample of 12 packages of chips is chosen from a shipment in which the weights of the packages are known to be normally distributed. The sample has an average weight of 106 grams, with a standard deviation of 5.2 grams. Is there evidence that the packages weigh significantly more than the 100 grams on the label?"

Choose the best checking of conditions.

Question 7 options:

It is normally distributed, so conditions for a TTest are met.

It is not normally distributed, so conditions for a TTest are not met.

np(1-p) > 10, so conditions for a 1-PropZTest are met.

The sample size is larger than 30, so conditions for a TTest are met.

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