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Q14. A random sample of recent stream flow rates at a watershed is to be compared with a sample of flow rates taken earlier. Has
Q14. A random sample of recent stream flow rates at a watershed is to be compared with a sample
of flow rates taken earlier. Has the variability of the flow rates changed from earlier times to recent
times? You may use either of the two tests we discussed to test this. Give the appropriate hypotheses,
your decision rule, test statistic value, and conclusion. Use alpha = 0.05.
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