Water! A blogger claims that U.S. adults drink an average of five 8-ounce glasses of

Chapter 9, Problem 82

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QUESTION:

Water! A blogger claims that U.S. adults drink an average of five 8-ounce glasses of water per day. Skeptical researchers ask a random sample of 24 U.S. adults about their daily water intake. A graph of the data shows a roughly symmetric shape with no outliers. The figure below displays Minitab output for a one-sample t interval for the population mean. Is there convincing evidence at the 10% significance level that the bloggers claim is incorrect? Justify your answer.

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QUESTION:

Water! A blogger claims that U.S. adults drink an average of five 8-ounce glasses of water per day. Skeptical researchers ask a random sample of 24 U.S. adults about their daily water intake. A graph of the data shows a roughly symmetric shape with no outliers. The figure below displays Minitab output for a one-sample t interval for the population mean. Is there convincing evidence at the 10% significance level that the bloggers claim is incorrect? Justify your answer.

ANSWER:

Step 1 of 2

Determine the hypotheses

Given  confidence interval:

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