Solution-Lightbulb and wants to estimate its mean lifetime

Lightbulb and wants to estimate its mean lifetime

Reference no: EM131742997

A company has developed a new type of lightbulb and wants to estimate its mean lifetime. A simple random sample of 101 bulbs had a mean lifetime of 750.2 hours with a standard deviation of 30 hours. A 95% confidence interval for the population mean lifetime is ______ (round to three decimal places)

Reference no: EM131742997

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Lightbulb and wants to estimate its mean lifetime

Reference no: EM131742997

Reference no: EM131742997

Questions Cloud

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Basic Statistics Questions & Answers

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Estimate the population mean

Conduct a marketing experiment

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Linear programming models

Assured A++ Grade

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