Suppose a classroom teacher wants to measure whether offering candy as a reward will increase the number of times that a student raises his/her hand to answer a question in class. A study yields the following data.Row C1 C21 9 122 7 83 15 144 10 115 8 7If column 1 is the number of times that a student raised their hand to answer a question before the candy reward was implemented, and column 2 is the number of times that the same students raised their hands to answer questions after the candy reward was implemented, which of the following is the appropriate inference method to analyze these data? Matched pairs Two independent samples Inference for regression

Suppose a classroom teacher wants to measure whether offering candy as a reward will increase the number of times that a student raises his/her hand to answer a question in class. A study yields the following data.Row C1 C21 9 122 7 83 15 144 10 115 8 7If column 1 is the number of times that a student raised their hand to answer a question before the candy reward was implemented, and column 2 is the number of times that the same students raised their hands to answer questions after the candy reward was implemented, which of the following is the appropriate inference method to analyze these data? Matched pairs Inference for regression Two independent samples

Suppose an economist wishes to determine the relationship between the age and price of houses. A study yields the following data:If column 1 is the price (in hundreds of thousands of dollars) of a sample of five houses from ten years ago, and column 2 is the price (in hundreds of thousands of dollars) of the same homes today, which of the following is the appropriate inference method to analyze these data? Two independent samples Inference for regression Matched pairs

researcher wants to explore the relationship between the following two variables, Weight 1 and Weight 2.In preparing for a balsa wood bridge challenge, students weighed (in g) a random sample of five balsa wood designs and recorded these data as Weight 1. They also recorded the maximum weight (in kg) that the bridge could support. If the students want to know if there is an association between the weight of the bridge (in g) and the maximum weight supported (in kg), which of the following is the appropriate inference method to analyze these data? Two independent samples Matched pairs Inference for regressionQuestion 3

A researcher wants to explore the relationship between two variables: Time 1 and Time 2.Time 1 Time 2421 400390 383459 436384 362403 392If Time 1 is the time (in seconds) that it took for a random sample of five female college tennis players to run a mile, and Time 2 is the time (in seconds) of a random sample of five female college basketball players to run a mile, which of the following is the appropriate inference method to analyze these data? Matched pairs Two independent samples Inference for regression

A researcher wants to explore the relationship between the following two variables, Weight 1 and Weight 2.Suppose that Weight 1 is the weight (in pounds) of a sample of five individuals before beginning a weight-loss diet, and Weight 2 is the weight in (pounds) of the same five individuals after the diet.If we would like to test the effectiveness of the diet, which of the following is the appropriate inference method to analyze these data? Matched pairs Inference for regression Two independent samples