The following n = 10 observations are a sample from a normal population.

7.3 7.1 6.4 7.4 7.5 6.3 6.9 7.6 6.4 6.9

1. Find a 99% upper one-sided confidence bound for the population mean . (Round your answer to three decimal places.)

2A. Test H₀: = 7.5 versus H_a: < 7.5. Use = 0.01. State the test statistic. (Round your answer to three decimal places.)

2B. State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.)

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