The General Social Survey collects data on demographics, education, and work, among many other characteristics of US residents. Using ANOVA, we can consider educational attainment levels for all 1,172 respondents at once. Below are the distributions of hours worked by educational attainment and relevant summary statistics that will be helpful in carrying out this analysis.

(a) Write hypotheses for evaluating whether the average number of hours worked varies across the five groups.

(b) Check conditions and describe any assumptions you must make to proceed with the test.

(c) Below is part of the output associated with this test. Fill in the empty cells.

(d) What is the conclusion of the test?

Transcribed Image Text:

Hours worked per week Mean SD n 80 60 40 20 O T 1 1. Less than HS 38.67 15.81 121 HIH Less than HS Educational attainment HS Jr Coll Bachelor's 39.6 41.39 14.97 18.1 546 97 HS Jr Coll 42.55 13.62 253 Graduate Total 40.85 40.45 15.51 15.17 1,172 155 Bachelor's HI Graduate