Answer the questions below, following the Submission Requirements as specified at the end of the assessment. Complete the following steps: There are 218 first graders in an elementary school. Of these first graders, 86 are boys, and 132 are girls. School-wide, there are 753 boys and 1063 girls. The principal would like to know if the gender ratio in first grade reflects the gender ratio across the school. Complete the following: You recently read a magazine article stating that professionals who attended college online tend to earn higher salaries than professionals who attended brick-and-mortar universities. Identify this study’s two variables. Complete the following steps: Group A (n = 12) has a mean score of 7.42. Group B (n = 12) has a mean score of 6.00. Standard deviation for scores across all participants is 1.369. Group A’s mean is significantly higher than Group B’s mean ( = 2.84, α < .01). Assume Cohen's to be approximately .40. If conducting an independent samples test (two-tail, α= .05), how many participants will you need in each group to achieve 90 percent (.90) power? Assume effect size η to be approximately .29. If conducting a one-way ANOVA (three groups, α = .05), how many participants will you need in each group to achieve 80 percent (.80) power. Which of the following scenarios might be analyzed using a correlation? Indicate if you expect the relationship between the following variables to be negative (-), positive (+), or zero (0): Complete the following steps: Complete the following: Complete the following steps after opening the SPSS file linked in the Resources under the Required Resources heading:
