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Zip,Inc.manufactures Zip drives on two different manufacturing processes.Because the management of this company is interested in determining if process 1 takes less manufacturing time,they selected independent samples from each process.The results of the samples are shown below.
a.State the null and alternative hypotheses.
b.Determine the degrees of freedom for the t test.
c.Compute the test statistic
d.At 95% confidence,test to determine if there is sufficient evidence to indicate that process 1 takes a significantly shorter time to manufacture the Zip drives.
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