Could you please help me solve the attached questions?

Question 7 0f 18 - [1 E View Policies Current Attempt in Progress The following regression model was tted to sample data with 12 observations: = 30 + 4.50x. What is the change in the predicted value of yfor a unit change in the value? Q 43.40 Q 36 Q 4.50 O 57.00 .0 30 Save for Later Attempts: unlimited Question 16 of 18 - [1 E View Policies Current Attempt in Progress A hospital administrator developed a regression line, 3,? = 30 + 2x, to predict y = the number of full-time employees (FTE) needed using x = the number of beds. The slope of this regression line suggests this: If] for a unit increase in the number of beds, the number of FTEs is predicted to increase by 2 If) for a unit increase in the number of beds, the number of FTEs is predicted to increase by 32 If) for a unit increase in the number of beds, the number of FTEs is predicted to decrease by 32 O. for a unit increase in the number of beds. the number of FTEs is predicted to decrease by 32 Save for Later Attempts: unlimited Submit Question 9 of 18 - /1 E View Policies Current Attempt in Progress Which of the following is not an assumption of the regression model? O. The model is linear O. The error terms are normally distributed O. The error terms have constant variance O. The error terms decrease as x values increase O. The error terms are independent Save for Later Attempts: unlimited Question 11 of 18 - /1 E View Policies Current Attempt in Progress Suppose for a given data set the regression equation is: y = 54.78 + 1.45x, and the point (0.00, 24.78) is in the data set. The residual for this point is O 24.78 0. 44.73 h. 0.00 O. -30.00 Save for Later Attempts: unlimited Submit 1' Question 12 of 18 - /1 E View Policies Current Attempt in Progress If the standard error of the estimate for a regression model fitted to a large number of paired observations is 1.75, approximately 68% of the residuals would lie within O -0.95 and +0.95 O -0.68 and +0.68 O -0.97 and +0.97 -3.50 and +3.50 O -1.75 and +1.75 Save for Later Attempts: unlimited Submit AnswerQuestion 13 of 18