Katie is making the claim that the average rate of sales tax in the United States is less than 8.5%. Therefore, this is a left-tailed test because of "less than". Since this is a left-tailed test, α and p-value will be areas on the left side of the distribution.
Added by Juan Manuel N.
Step 1
- Null Hypothesis (H0): The average rate of sales tax in the United States is 8.5% or more (H0: μ ≥ 8.5%). - Alternative Hypothesis (H1): The average rate of sales tax in the United States is less than 8.5% (H1: μ < 8.5%). Show more…
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