Chi square

D Question 19 19. What are the degrees of freedom? 0 3 O 1 0 4 0 2 D Question 20 20. What is the critical Chi-Square at p = 0.05? O 7.815 0 9.488 O 3.841 O 5.991 O 4.605Lesson 13: Chi Square A psychologist interested in interpersonal attraction asked 90 undergraduate students whether they prefer to date blonds, brunettes, or redheads. The table below shows the data. Use this data to answer questions 15-21. Blondes (1) Brunettes (2) Redheads (3) 23 39 28 15. What is fe1? O 30 0 50 O 23 O 33 O 45 D Question 16 3 pts 16. What is fez? O 30 O 23 O 33 O 45 50D Question 20 20. What is the critical Chi-Square at p = 0.05? O 7.815 O 9.488 O 3.841 0 5.991 O 4.605 D Question 21 21. What do you conclude? O The Chi-Square is significant so we reject the null hypothesis. The Chi-Square is not significant so we fail to reject the null hypothesis. The Chi-Square is not significant so we reject the null hypothesis. The Chi-Square is significant so we fail to reject the null hypothesis. O I don't have a clue