How to solve this question

It is under chapter Chi-Square Tests, in Statistis course.

I really hope that you can show the step by step that I need like provided in the second photo.

By the way,the question is 10 marks,I really hope you can help me to get the mark correctly.

Please.

SMS1044: Statistical Inference 2. An occupational safety officer in a manufacturing plant has collected information on type of injuries that occurred in the plant in the past 5-years and summarized it as given in Table 1. Table 1. Type of injuries that occurred in plant over past 5-years Type of injuries Cut by sharp items Fire injury Falls Number of cases 174 imsbear 75 253 Findings from a similar plant showed that the three types of injuries (cut by sharp items, fire injury and falls) were accordingly distributed with a ratio of 2:1:2. Using 2.5% significance level, test whether the distribution of injuries obtained by the officer is also 2:1:2. o nan jelled [10 marks]State the hypothesis & identify the claim 2) Find the critical value in the right tail, 3) Compute the test value 21) Make the decision 5 ) Summarize the results