DillingerEscp
Veteran XV
It's some homework I have. Doesn't matter if I get help on it (I'm more honorable than that, goddamnit)
But anyway, heres the question, if anyone could even just point me in the right direction, I'd be greatful.
3 machines fill packages labeled 80 ounces. The 3 filling processes appear to be statistically stable and random samples from each machine are collected:
Machine 1: n=8, mean = 80.2 oz. Standard Deviation = 1.4 oz.
Machine 2: n=8, mean = 81.8 oz. Standard Deviation = 1.8 oz
Machine 3: n=8, mean = 79.9 oz. Standard Deviation = 1.5 oz.
At the 0.05 significance level, test the claim that the 3 machines have the same mean...
I already have the hypothesis down, I got that much Null hypothesis: (mean 1 = mean 2 = mean 3) and the alternative hypothesis (mean 1 /= mean 2 /= mean 3)
Any idea on how to do this? Or at least what test statistic is supposed to be employed?
Appreciate it.
But anyway, heres the question, if anyone could even just point me in the right direction, I'd be greatful.
3 machines fill packages labeled 80 ounces. The 3 filling processes appear to be statistically stable and random samples from each machine are collected:
Machine 1: n=8, mean = 80.2 oz. Standard Deviation = 1.4 oz.
Machine 2: n=8, mean = 81.8 oz. Standard Deviation = 1.8 oz
Machine 3: n=8, mean = 79.9 oz. Standard Deviation = 1.5 oz.
At the 0.05 significance level, test the claim that the 3 machines have the same mean...
I already have the hypothesis down, I got that much Null hypothesis: (mean 1 = mean 2 = mean 3) and the alternative hypothesis (mean 1 /= mean 2 /= mean 3)
Any idea on how to do this? Or at least what test statistic is supposed to be employed?
Appreciate it.
Spoiler