2. Two leading brands of potato chips were tested to compare their sodium content. Ten packs of brand A yielded a mean sodium content of 80 mg/pack with a standard deviation of 5.4 mg while eight...

Extracted text: 2. Two leading brands of potato chips were tested to compare their sodium content. Ten packs of brand A yielded a mean sodium content of 80 mg/pack with a standard deviation of 5.4 mg while eight packs of Brand B yielded an average content of 75 mg/pack with a standard deviation of 6.1 mg. Is there a difference in the sodium content of the two brands at the 0.05 level of significance? (Assume normality with equal variances)