Question: 24. Dissolved O2 Content A state agency requires a minimum of 5 parts per million (ppm) of dissolved oxygen in order for the oxygen content

24. Dissolved O2 Content 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 4.9, 5.1, 4.9, 5.0, 5.0, and 4.7 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 5.05.

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