A state agency requires a minimum of 5 parts per million (ppm) of dissolved oxygen in...

  

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A state agency requires a minimum of 5 parts per million (ppm) of dissolved oxygen in order for the oxygen content to be sufficient to support aquatic life. Six water specimens taken from a river at a specific location during the low-water season (July) gave readings of 5.0, 5.0, 4.8, 5.1, 5.1, and 4.6 ppm of dissolved oxygen. Do the data provide sufficient evidence to indicate that the dissolved oxygen content is less than 5 ppm? Test using a = 0.05. State the null and alternative hypotheses. O Ho: μ 5 versus H₂: μ = 5 ○ Ho: μ = 5 versus H₂: μ # 5 Ho: μ< 5 versus H₂: μ> 5 ⒸHO: μ< 5 versus H₂: μ = 5 ⒸH: μ = 5 versus H₂: μ< 5 State the test statistic. (Round your answer to three decimal places.) X State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) X X t< A state agency requires a minimum of 5 parts per million (ppm) of dissolved oxygen in order for the oxygen content to be sufficient to support aquatic life. Six water specimens taken from a river at a specific location during the low-water season (July) gave readings of 5.0, 5.0, 4.8, 5.1, 5.1, and 4.6 ppm of dissolved oxygen. Do the data provide sufficient evidence to indicate that the dissolved oxygen content is less than 5 ppm? Test using a = 0.05. State the null and alternative hypotheses. O Ho: μ 5 versus H₂: μ = 5 ○ Ho: μ = 5 versus H₂: μ # 5 Ho: μ< 5 versus H₂: μ> 5 ⒸHO: μ< 5 versus H₂: μ = 5 ⒸH: μ = 5 versus H₂: μ< 5 State the test statistic. (Round your answer to three decimal places.) X State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) X X t<

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The following data represents the six water specimens t... View the full answer