Calculate the test statistic and show the decision

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Barny's diner has a soft drink dispenser that pours 12 ounces of fluid in each cup. Barny thinks that on average it is pouring more. He collects a random sample of 25 soft drinks and sees the average is actually 12.4 ounces with a standard dev of .03. Is Barny correct in his thinking? Assume the data is normally distributed and the the level of significance is 0.05.

Show H0 and Ha, draw the sampling distribution showing critical value and rejeceted region, calculate the test statistic and show the decision/conclusion in the context.

Reference no: EM132438626

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