A company claims that the mew boxes of detergents that it se

A company claims that the mew boxes of detergents that it sells contain more than 500 grams of detergents. From past experience the company known that the quantity of detergent in a box is normally distributed with a mean of 500 grams and a standard deviation of 120 grams. A market analysis bought 64 boxes of the detergent and found that the average weight is 520 grams. Determine if the company\'s claim is legitimate at the 0.05 level of significance.

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