In an effort to test the hypothesis that the proportion of voters in the younger than 40 year old age bracket who will vote for a particular politician is different than the proportion voters in the above 40 age bracket, the following data was collected. the test statistics (z-score) of the test hypothesis at 0.10 level of significance would (specify your answer to the 2nd decimal.)

population number who will vote for politician sample size
below 40 348 700
above 40 290 650