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Justin is interested in buying a digital phone. He visited 8stores at random and recorded...

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Basic Math

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Justin is interested in buying a digital phone. He visited 8stores at random and recorded the price of the particularphone he wants. The sample of prices had a mean of 269.06and a standard deviation of 34.15.(a) What t-score should be used for a 95% confidenceinterval for the mean, ?, of the distribution?t*=(b) Calculate a 95% confidence interval for the mean price ofthis model of digital phone:(Enter the smaller value in the left answer box.)to

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