Required information A broth used to manufacture a pharmaceutical product has its sugar content, in mg/mL, measured several times on each of three successive days. 5.0 4.8 5.1 5.1 4.8 5.1 4.8 Day 1: 4.8 5.0 5.2 4.9 4.9 5.0 5.8 4.7 4.7 4.9 5.1 4.9 5.4 Day 2 5.3 5.3 4.8 5.7 5.1 5.7 6.3 4.7 5.1 5.9 5.1 5.9 4.7 Day 3: 6.0 5.3 4.9 5.7 5.3 5.6 Can you conclude that the variability of the process is greater on the second day than on the first day? Find the P-value and state a conclusion. Since P < 0.001 first da (Click to select) P < 0.001 0.001 0.10 we can conclude that the variability of the process on the second day is greater than on the

Which would be the appropriate way to test differences in proportions for more than two samples?     t-test if variance is unknown     z-test     paired t-test     F-test for equality of variances     cross-tabulation procedure to conduct a chi-square test

Explain the effect of heterogeneity of variance on the Type I error rate?

8 If the analysis of variance F-test leads to the conclusion that at least one of the model parameters is nonzero, can you conclude that the model is the best predictor for the dependent variable y? Can you conclude that all of the terms in the model are important for predicting y? What is the appropriate conclusion?

A researcher wants to measure average cardiovascular health of university students and compare those scores to the average scores in the general population. Assuming that population variance is known, what statistical test is most appropriate for this study?        independent-samples t-test     single-sample t-test     z-test for sample mean     related-samples t-test