6. (20PTS) The ascorbic acid concentration of five different brands of orange juice was measured. Six replicate samples of each brand were analyzed. The following partial ANOVA table was obtained. Variation Source S MS F JP Between juices 8.45 Within juices 0.913 Total a. Fill in the missing entries in the table. b. State the null and alternative hypothesis. c. Is there a difference in the ascorbic acid content of the five juices at the 95% confidence level?

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.