In a recent interview, the producers of "Big Brother" claimed that two-fifth of the 15 to 24 age group regularly watch reality TV shows. A UQ academic wishes to test this claim. From a survey of 250 people in this age group, it was found that 125 regularly watched reality TV shows. Assuming the significance level of for the test to be 5%, what is the value of the test statistic (round your answer to two decimal places)