Prior to a set of compensation policy changes at a company 31% of the employees surveyed said that they liked their job very much, 45% said that they liked their job moderately, and the remaining employees said that they were dissatisfied with their job. Now, in a survey of 202 employees, 76 said they liked their job very much, 106 said that they liked their job moderately, and the remaining employees said that they were dissatisfied with their job.When testing (at the 5% level of significance) whether the proportions have changed, what is the critical value? (please round your answer to 3 decimal places)