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need graph and srep by step 1. A line of air conditioners is advertised as using a mean of 700 watts of power with a

need graph and srep by step

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1. A line of air conditioners is advertised as using a mean of 700 watts of power with a standard deviation of 50 watts. A rival company tests 12 of the units and finds a mean of 725 watts. Assuming a normal distribution, test the validity of the advertisement at a 0.03 level of significance. Determine the p value. Need graph and step by step

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