The table shows lifetimes under controlled conditions, in hours in excess of 1000 hours, of samples of 60W electric ligh
Posted: Mon Nov 15, 2021 10:49 am
The table shows lifetimes under controlled conditions, in hours in excess of 1000 hours, of samples of 60W electric light bulbs of three different brands. Brand 1 2. 3 16 18 26 15 22 31 13 20 24 21 16 30 15 24 24 Assuming all lifetimes to be normally distributed with common variances, test at 1% level of significance, the hypothesis that there is no difference between the three brands with respect to mean lifetime. What is F value up to two decimal points? Answer: