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Why would the error bound change if ci were lowered

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Question: One hundred eight Americans were surveyed to determine the number of hours they spend watching television each month. It was revealed that they watched an average of 151 hours each month with a standard deviation of 32 hours. Assume that the underlying population distribution is normal.

1. Why would the error bound change if the confidence level were lowered to 95%?

Reference no: EM131643896

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