Question 26 Not yet answered Points out of 1.000 The mean potassium content of a

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Question 26 Not yet answered Points out of 1.000 The mean potassium content of a popular sports drink is listed as 140 mg in a 32-oz bottle. You are interested in testing the manufacturers claim. Accordingly, you analyze 20 bottles and calculate a sample mean of 139.4 mg. Assuming a known standard deviation of 2.00 mg, you are interested in testing whether the mean potassium content is different from 140. How would you construct the null hypothesis? Flag question Select one: a. Ho: # 140 b, Ho: 140 C. Ho: 2140 d, Ho: = 140

Explanation / Answer

Null hypothesis is that of equality. thus the correct answer is option D. Ho : mu=140 .

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