The lifespan of a 100-W fluorescent lamp is define to be normally distributed with ơ = 30 hrs. A random sample of 15 lamps has a mean life of X = 1000 hours. Construct a 95% lower-confidence bound on the mean life. OHZ 987 1001 SH 1002 SH 990 SH HZ 1002 1007 SH Ομ2 007 HZ 984 Ou2 1001 984 sH O HZ 990 987 SH

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.