Pt 1

For multiple choice question or fill in the blank questions, circle the correct answer. You must show your work where appropriate. Each multiple choice/short answer question is worth 4 points. 1. If Data A has a correlation coefficient of r = -0.991, and Data B has a correlation coefficient of r = 0.899, which conclusion is correct? A) Data A and Data B have the same strength in linear correlation. B) Data A has a weaker linear correlation than Data B. C) Data A has a stronger linear correlation than Data B. D) There is not enough information to compare the correlation strengths 2. True or False? In a one-way analysis of variance test with three independent samples, the following null and alternative hypotheses are appropriate: Ho: M = H2 = My A) true B) false 3. Classify the two given samples as independent or dependent. Sample 1: weights of 19 people randomly selected people Sample 2: heights of 19 randomly selected people A) dependent B) independent 4. Find the p-value to test the claim that H1 > H2. Two samples are randomly selected from each population. The sample statistics are given below. (assume eq al variances if necessary) n1 = 19 n2 = 12 X = 29 X2 = 26 $1 = 2.9 $2 = 2.8 p-value: (write as a FOUR DIGIT decimal) 5. Which test is used to compare the population means of more than two populations? ANOVA a dependent samples t-test a 2propZtest a 2 sample t test None of these