Can you help me with question 13.6 and 13.38? I am looking for ways to solve them, but don't know where to start

13.6 A multinomial experiment with k : 3 cells and n : 320 produced the data shown in the accompanying table. Do these data provide sufficient evidence to contradict the null hypothesis that p1 = .25, pa = .25, and p3 = .50? Test. using a = .05. Cell 1 2 3 nl- 78 60 182 13.38 NAWIC Job satisfaction of women in construction. The hiring of women in construction and construction-related jobs has steadily increased over the years. A study was conducted to provide employers with information designed to reduce the potential for turnover of female employees (Journal of Professional Issues in Engineering Education & Practice, Apr. 2013). A survey questionnaire was e-mailed to members of the National Association of Women in Construction (NAWIC). A total of 447 women responded to survey questions on job challenge and satisfaction with life as an employee. The results (number of females responding in the different categories) are summarized in the accompanying table. What conclusions can you draw from the data regarding the association between an NAWIC member's satisfaction with life as an employee and her satisfaction with job challenge? Life as an Employee Satisfied Dissatisfied Job Satisfied 364 33 Challenge Dissatisfied 24 26