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A random sample of 3001credit-card holders are surveyed for annual credit-card debt. The sample mean is $2788. If the population standard deviation is $886, use

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A random sample of 3001credit-card holders are surveyed for annual credit-card debt. The sample mean is $2788. If the population standard deviation is $886, use this sample data to construct a confidence interval for the mean annual credit-card debt with a 95% level of confidence by first answering the following questions: Question: Za/2=

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