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A political analyst believes that a recent to support a in a senator's decision bill resulted 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: O This is a left-tailed test because the alternative hypothesis is H,: Mu 0. O This is a left-tailed test because the alternative hypothesis is H Ha>0. O This is a two-tailed test because the alternative hypothesis is Ha: H o. This is a right-tailed test because the alternative hypothesis is Ha : Ha > 0 O This is a right-tailed test because the alternative hypothesis is H: Hu <0.

A political analyst believes that a recent to support a in a senator's decision bill resulted 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: O This is a left-tailed test because the alternative hypothesis is H,: Mu 0. O This is a left-tailed test because the alternative hypothesis is H Ha>0. O This is a two-tailed test because the alternative hypothesis is Ha: H o. This is a right-tailed test because the alternative hypothesis is Ha : Ha > 0 O This is a right-tailed test because the alternative hypothesis is H: Hu <0.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 6E
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A political analyst believes that a recent to support a in a senator's decision bill resulted 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: O This is a left-tailed test because the alternative hypothesis is H,: Mu 0. O This is a left-tailed test because the alternative hypothesis is H Ha>0. O This is a two-tailed test because the alternative hypothesis is Ha: H o. This is a right-tailed test because the alternative hypothesis is Ha : Ha > 0 O This is a right-tailed test because the alternative hypothesis is H: Hu <0.
Transcribed Image Text:A political analyst believes that a recent to support a in a senator's decision bill resulted 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: O This is a left-tailed test because the alternative hypothesis is H,: Mu 0. O This is a left-tailed test because the alternative hypothesis is H Ha>0. O This is a two-tailed test because the alternative hypothesis is Ha: H o. This is a right-tailed test because the alternative hypothesis is Ha : Ha > 0 O This is a right-tailed test because the alternative hypothesis is H: Hu <0.
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