step by step

Question 1) Children of three ages are asked to indicate their preference for three photographs of adults. Is there a difference in photograph preference by age group? (4 Marks) Photograph: Age of child: 5-6 years: 7-8 years: N 9-10 years: 20 What would be the null hypothesis in this study? What would be the alternate hypothesis? What is your chi-square statistic? Is there a significant difference between the groups at a 95% level of confidence