A political analyst believes that a senator's recent decision to support a bill resulted in a drop of approval ratings. To test this claim, he selects random cities in the state that voted the senator...

Extracted text: A political analyst believes that a senator's recent decision to support a bill resulted in a drop of approval ratings. To test this claim, he selects random cities in the state that voted the senator in and compares the approval ratings before the decision to the approval ratings after the decision. Suppose that data were collected for a random sample of 8 cities, where each difference is calculated by subtracting the percent approval rating before the decision from the percent approval rating after the decision. Assume that the percentages are normally distributed. What type of test is this hypothesis test? Select the correct answer below: This is a left-tailed test because the alternative hypothesis is H. : Ha < 0.="" this="" is="" a="" left-tailed="" test="" because="" the="" alternative="" hypothesis="" is="" h,="" :="" ha=""> 0. This is a two-tailed test because the alternative hypothesis is H, : µa # 0. This is a right-tailed test because the alternative hypothesis is H, : Ha > 0. This is a right-tailed test because the alternative hypothesis is H, : µa <>