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Mathematics, 12.06.2020 16:57 chloejason8375

The length of duration, in minutes, of earthquakes in California has been recorded for future analysis and information. An earthquake expert claims that the average duration of earthquakes in California is 0.5 minutes. To investigate the validity of this claim a random sample of 6 earthquakes were taken and the sample mean and the sample standard deviation were 1.15 and 0.308 and minutes, respectively. Construct a 98% confidence interval and determine if the researcher`s claim can be rejected.

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