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, 5.2, 4.8, 4.9, 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. Ho: u < 5 versus H,: µ = 5 O Ho: u + 5 versus H: µ = 5 O Ho: µ = 5 versus H: µ # 5 О Но: и < 5 versus H,: и > 5 O Ho: µ = 5 versus H,: u < 5 State the test statistic. (Round your answer to three decimal places.) t = |-.756 State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) t > NONE

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, 5.2, 4.8, 4.9, 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. Ho: u < 5 versus H,: µ = 5 O Ho: u + 5 versus H: µ = 5 O Ho: µ = 5 versus H: µ # 5 О Но: и < 5 versus H,: и > 5 O Ho: µ = 5 versus H,: u < 5 State the test statistic. (Round your answer to three decimal places.) t = |-.756 State the rejection region. (If the test is one-tailed, enter NONE for the unused region. Round your answers to three decimal places.) t > NONE

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.3: Measures Of Spread

Problem 1GP

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