5. A bath soap manufacturing process is designed to produce a mean of 120 bars of soap per batch. A sample of 11 batches show the following numbers of bars of soap: 108, 118, 120, 122, 119, 113, 124, 122, 122, 120, 123 At the 1% level test if the production process meets the standard output of 120 bars per batch. Use the critical value method.

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