StatisticsHardConfidence Intervals
Confidence Intervals · Hard problem
A company claims its light bulbs last days on average. A random sample of bulbs has days and days. Using ( degrees of freedom), is a plausible value for the mean at confidence?
A company claims its light bulbs last days on average. A random sample of bulbs has days and days. Using ( degrees of freedom), is a plausible value for the mean at confidence?