Orange Juice A comparison of the precisionsof two machines
Chapter 10, Problem 89(choose chapter or problem)
Orange Juice A comparison of the precisionsof two machines developed for extracting juice fromoranges is to be made using the following data:Machine A Machine Bs 2 3.1 ounces2 s 2 1.4 ounces2n 25 n 25a. Is there sufficient evidence to indicate that there isa difference in the precision of the two machines atthe 5% level of significance?b. Find a 95% confidence interval for the ratio of thetwo population variances. Does this interval confirmyour conclusion from part a? Explain.
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