The average potassium in a sports drink is listed as 140 mg in a 32 ounce bottle You sample 20 bottles and find that the mean potassium in your sample is 139.4. The population standard deviation of potassium is known as 2.00 mg for sports drink. Answer the following questions. (a) Write down the null and alternative hypothesis to test the claim about the average potassium amount. (b) Find the critical value for the type of test and show in the distribution the rejection region with proper values. (c) Find the test statistic

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