The standard deviation of duration times (in seconds) of the Old Faithful geyser is less than 40
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The standard deviation of duration times (in seconds) of the Old Faithful geyser is less than 40 sec.
Examine the given statement, then express the null hypothesis H0 and alternative hypothesis H1 in symbolic form. Be sure to use the correct symbol (μ, p, σ) for the indicated parameter.
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