please I need help with this stats question

8.16 A study was conducted among school children on examination of the Ruskapp relationship between overweight/obese and sleep difficulties [1]. In the group of gaizu n children with overweight/obese (n = 171), 26.3% of them reported having sleep .8 difficulties, but only 10.3% did among children with normal weight (n = 435). a) If assume that the proportions self-reported sleep difficulties in population of school children with or without overweight/obese are the same, what would be the weighted average of the two sample proportions p? b) Conduct a hypothesis testing with normal approximation approach for the null hypothesis that the proportion of self-reported sleep difficulties among school children with overweight/obese will be identical to that among school children with normal weight in population. c) What do you conclude? What is the 95% confidence interval for the difference between the proportions? d) When analyzing this data with Chi-square test approach, does it give you the same conclusion