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A manufacturer of giftbox claims that the giftboxes sold weigh on average at least 16 ounces. The distribution of weight is known to be normal, with a standard deviation of 0.4 ounce. A random sample of
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A manufacturer of giftbox claims that the giftboxes sold weigh on average at least 16 ounces. The distribution of weight is known to be normal, with a standard deviation of 0.4 ounce. A random sample of 16 giftboxes yielded a sample mean weight of 15.84 ounces. Test at the 10% significance level the null hypothesis that the population mean weight is 16 ounces. Specifically, follow the steps below.

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A manufacturer of giftbox claims that the giftboxes sold weigh on average at least-example-1
User Arto
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