he Subject: STS 201_YOUR ID NUMBERA sample of 15 one-pound jars of coffee of Brand I showed that the mean amount of caffeine inthese jars is 80 milligrams per jar with a standard deviation of 5...

he Subject: STS 201_YOUR ID NUMBERA sample of 15 one-pound jars of coffee of Brand I showed that the mean amount of caffeine inthese jars is 80 milligrams per jar with a standard deviation of 5 milligrams. Another sample of12 one-pound coffee jars of Brand II gave a mean amount of caffeine equal to 77 milligrams perjar with a standard deviation of 6 milligrams. Assume that the two populations are approximatelynormally distributed.a. Test at a 1% significance level if whether the standard deviations of the two populations aredifferent