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Two brands of toothpaste were compared in terms of their average content. A sample of 14 tubes of brand C toothpaste showed an average of 98 ml with standard deviation of 7ml, while a sample of 16 tubes of brand P toothpaste showed an average weight of 95 ml with a standard deviation of 4.5 ml. is there a difference in the mean content of toothpaste between the two brands using the 0.05 level of significance.