A researcher claims that the proportion of smokers in a certain city is less than 15%. To test this claim, a random sample of 550 people is taken in the city and 100 people indicate they are smokers. The following is the setup for this hypothesis test: {H0:p?0.15Ha:p<0.15 Find the test statistic for this hypothesis test for a proportion. Round the proportion of successes to 3 decimal places and round your final answer to 2 decimal places. Provide your answer below: $$