Homework Help: statistics

Posted by Lost37 on Thursday, March 21, 2013 at 12:47am.

the weights of shells follow a normal distribution. a random sample of 12 hybrid shells a a mean weight of 1.7 pounds with standard deviation 0.24 pounds. Find a 95 % confidence interval level for the mean weight if the fall catch is within 0.1 pounds of the sample estimate

statistics - PsyDAG, Thursday, March 21, 2013 at 12:57pm
95% = mean ą 1.96 SEm

SEm = SD/√n

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