1 4 points Use the following dataset to determine the n's and averages for each group. Group A Group B 3 5 7 3 5 6 7 8 N . n for group A is type your answer. . n for group B is type your answer. . the average for group A is type your answer. . the average for group B is type your answer.2 points Calculate the variance for Group A. Group A Group B Round to the nearest hundredth, but note that you should also keep your answer up to four decimal places [if relevant]: for calculating pooled variance! Type your answer... 3 2 points Calculate the variance for Group B. Group A Group B 3 5 5 7 7 3 5 6 7 3 8 Round to the nearest hundredth, but note that you should also keep your answer up to four decimal places (if relevant) for calculating pooled variance! Type your answer.4 2 points Calculate the pooled variance for groups A and B, using your answers from the previous questions. Round to the nearest hundredth, but note that you should also keep your answer up to four decimal places (if relevant) for calculating your t value! Type your answer.a 2 points 533' Calculate the twosample ttest value for comparing groups A and B. Use q.rour answers to the previous questions. Round to the nearest hundredth. Type your answer... 1 1 point A researcher ran a regression model predicting relationship satisfaction (Y) from communication skill level (X). The intercept (a) was 4.12, and the coefficient (b) was 0.85. The predicted relationship satisfaction score was 8.37 for a particular communication skill level. What was the communication skill level? Type your answer..2 3 points Match the following descriptions to the most appropriate term a predicted or expected y value for a given value of x A the distance between y and y-hat, bivariate regression represented by epsilon error the relationship between the "rise" multivariate regression (change in y) and "run" (change in x) of a line slope a type of statistical model with one y-hat predictor and a numerical outcome variable intercept a type of statistical model with multiple predictor variables and one numerical outcome variable the points where a line hits a y-axis V OR the value of y when x is 03 1 point A researcher ran a regression model predicting relationship satisfaction (Y) from communication skill level (X). The intercept (a) was 4.12, and the coefficient (b) was 0.85. One individual had a communication skill rating of 6 and an error value of -1.22. What was their actual value for relationship satisfaction? Type your answer.4 1 point A researcher ran a regression model predicting relationship satisfaction (Y) from communication skill level (X). The intercept (a) was 4.12, and the coefficient (b) was 0.85. What is the predicted relationship satisfaction score for someone with a communication skill level rating of 9? Type your answer..5 1 point What can a regression equation tell you that a correlation coefficient can't? O Whether a relationship between x and y is significant or not How closely related a predictor (x) and outcome (y) are Whether the relationship between x and y is positive or negative O On average, what outcome (y) you get based on predictor (x) values6 1 point A researcher ran a regression model predicting relationship satisfaction (Y) from communication skill level (X). The intercept (a) was 4.12, and the coefficient (b) was 0.85. One individual with a communication skill rating of 3 had a relationship satisfaction score of 8. What was the error or & associated with this person? Type your answer.7 1 point Which of the following is NOT a good description of what the "b" coefficient(s) in a regression equation tells you? O how much y increases or decreases as you increase x by 1 unit the value of y when the predictor (x) has a value of 0 how far up or down you move on a graph as you move one unit to the right O the slope of the line in a graph of a predictor and outcome