Question: QUESTION #1 A random sample of 95 light bulbs had a mean life of x = 531 hours with a standard deviation of a

QUESTION #1 A random sample of 95 light bulbs had a mean life of x = 531 hours with a standard deviation of a 33 hours Construct a 90 percent confidence interval for the mean life, H, of all light bulbs of this type. 1b) Construct a 95% confidence interval for Question #1. 1c) Construct a 90% confidence interval for Question #1. 1d) What happens as you increase the confidence level? I

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