Mathematics, 08.04.2021 01:00, nosleepbrooklyn2006

Suppose a consumer wanted to find out whether a highlighter lasted less than the manufacturers claim that their highlighters could write continuously for 14 hours. The researcher tested 30 highlighters and recorded the number of continuous hours each highlighter wrote before drying up. test the hypothesis that the highlighters wrote for less than 14 continuous hours. Following are the summary statistics x-bar=13.6 hours s=1.3 hours

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Suppose a consumer wanted to find out whether a highlighter lasted less than the manufacturers claim...