2022 Introduction to Statistics in Research Mitchell 2nd ed

I N T R O T O R E S E A R C H : D A T A V I S U A L I Z A T I O N & C O M M O N S T A T T E S T S

Abstract: “ This mixed methods study of 352 Fortune 500 companies, as identified by Fortune.com, demonstrated that corporate executives applied transformational and transactional leadership more often in their 2014 CEO letters than authentic and servant leadership ” ( Legutko, 2016).

Tests used: Chi-square, F -tests, stepwise multiple regression analysis. outlier testing and independent samples t -tests, paired t -tests, Levine test, Wilcoxon signed-ranks test

Question 1 : The inferential statistic used to analyze two-group designs is called the ________.

Answer: independent-samples t test

Question 2: Jesse is studying the effect of daily exercise on happiness. His directional alternative hypothesis might state ______.

a. there will be no effect of daily exercise on happiness b. there will be an effect of daily exercise on happiness

c. daily exercise will not affect happiness d. daily exercise will increase happiness

Answer: d

Question 3 : The assumption that variances in populations are the same is called ______.

Answer: homogeneity of variance

119