In a survey of 100 randomly selected people in city a, 71 support increased government spending on roads and bridges. in a survey of 100 randomly selected people in city b, 84 support such spending. test the alternative hypothesis that the population proportion of people in city a that support such spending is different from the population proportion of people in city b. use the level of significance α=0.05. the test statistic is z≈−2.20, and the p-value is approximately 0.028. identify all of the appropriate conclusions to the hypothesis test below.