At the 025 level has holdlonger increased the shelf life of

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The liquid chlorine added to swimming pools to combat algae has a relatively short shelf life before it loses its effectiveness. Records indicate that the mean shelf life is 4.5 L jug of chlorine is 2160 hours (90 days). As an experiment, Holdlonger was added to the chlorine to find whether is would increase the shelf life. A sample of nine jugs of chlorine had these shelf lives (in hours):

2159 2170 2180 2179 2160 2167 2171 2181 2185

At the .025 level, has Holdlonger increased the shelf life of the chlorine? Determine or estimate the p-value.

Reference no: EM13582429

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