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In a random sample of 7 residents of the state of Maine, the mean waste recycled...

In a random sample of 7 residents of the state of Maine, the mean waste recycled per person per day was 1.7 pounds with a standard deviation of 0.71 pounds. Determine the 90% confidence interval for the mean waste recycled per person per day for the population of Maine. Assume the population is approximately normal. Step 1 of 2: Find the critical value that should be used in constructing the confidence interval. Round your answer to three decimal places. Also, find the lower and upper value.

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