Question 7 (1 point) Under which of the following circumstances might you justifiably use 3 Mann- Whitney-Wilcoxon test? 0 When the data show unequal variance between the two groups being compared. 0 When the data are non-normally distributed and can't be adequately transformed to meet normality. Q When you want to decrease the likelihood of Type I error. 0 When you need to test for statistical differences between the means of two populations. Question 8 (1 point) A P value threshold of 0.05 for determining statistical significance means that: O The result is significant if the probability that the alternative hypothesis is more than 0.95. O The result is significant if the probability that the null hypothesis is true is less than 0.05. O The probability of a Type I error is 0.05 O The smallest value of P that we would consider biologically meaningful is 0.05 Question 10 (1 point) When house prices are reported for suburbs in Melbourne, the measure given is the MEDIAN house price, rather than the mean. This is likely because: 0 The variance in house prices is so high the mean is not a meaningful measure. 0 The median makes it easier to statistically compare differences in house prices across the suburbs 0 Median house price is less influenced by unusually anomalously high individual house prices. 0 Median house price is simpler to calculate by hand