Wall thickness of 25 glass 2-liter bottles was measured by a quality-control engineer. The sample mean was x = 4.04 and the sample standard deviation was s = 0.05. Find a 95% lower confidence bound for mean wall thickness. Assume population is approximately normally distributed. Round your answer to 3 decimal places. με i Statistical Tables and Charts

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Wall thickness of 25 glass 2-liter bottles was measured by a quality-control engineer. The sample mean wasx = 4.04 and the sample
standard deviation was s= 0.05. Find a 95% lower confidence bound for mean wall thickness. Assume population is approximately
normally distributed.
Round your answer to 3 decimal places.
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Transcribed Image Text:Wall thickness of 25 glass 2-liter bottles was measured by a quality-control engineer. The sample mean wasx = 4.04 and the sample standard deviation was s= 0.05. Find a 95% lower confidence bound for mean wall thickness. Assume population is approximately normally distributed. Round your answer to 3 decimal places. με i Statistical Tables and Charts Attempts: 0 of 1 used Submit Answer
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