Determine a 95 percent two-sided confidence interval

Reference no: EM13902102

The following data resulted from 24 independent measurements of the melting point of lead.

330?C	322?C	345?C
328.6?C	331?C	342?C
342.4?C	340.4?C	329.7?C
334?C	326.5?C	325.8?C
337.5?C	327.3?C	322.6?C
341?C	340?C	333?C
343.3?C	331?C	341?C
329.5?C	332.3?C	340?C

Assuming that the measurements can be regarded as constituting a normal sample whose mean is the true melting point of lead, determine a 95 percent two-sided confidence interval for this value. Also determine a 99 percent two-sided confidence interval.

Reference no: EM13902102

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