Regression analysis
A physics class has 50 students. Of these, 14 students are physics majors and 16 students are female. Of the physics majors, three are female. Find the probability that a randomly selected student is female or a physics major. The probability that a randomly selected student is female or a physics major is (Round to three decimal places as needed.)An international mathematics and science study obtained Calculus and Physics scores for 93 students within one particular region. A linear regression model was fitted, resulting in the following scatter plot with superimposed least squares line, and summary statistics. Calculus Physics Mean 461 60226 451.63849 Std Dev 98.340618 86.095794 Minimum 263.18 259.66 Maximum 708.62 819.31 800 700- 600- Physics Score 500 - 400 300 300 400 500 600 700 Calculus Score Estimate 5td Error t Statistic P-value Intercept 173.65547 31.43222 5.52 3.110e-7 Slope 0.6022133 0.066615 9.04 2.602e-14 Source df 55 MS Fratio P-value Regression 1 322666.87 322667 7 81.7261 3.110e-7 Error 91 359281.82 3948 Total 681948.69 The student who obtained the maximum score (819.31) for Physics had a calculus score of 641.49. By how much did this student exceed the Physics score predicted by the fitted model? Select one: O 3. 390.26 O b. 667.05 O c. 367.67 O d. 559.97 O e. 259.34What is the role of the potato extract in the decomposition of hydrogen peroxide in water?: Acls activating the decomposition process because it contains an enzyme called 'catalase'. which catalyzes the generation of molecular oxygen from hydrogen peroxide increasing the activation energy ofthe reaction. Acls activating the decomposition process because it contains an enzyme called 'catalase'. which catalyzed the generation of molecular oxygen and molecular hydrogen from H202 in water. reducing the activatio n energy ofthe reaction. Acls activating the decomposition process because it contains an enzyme called 'catalase'. which catalyzed the generation of molecular oxygen from hydrogen peroxide in water, reducing the activation energy ofthe reaction. Question 30. Define: SDWA MCL DBP THM HAA Question 31. Explain the natural process by which water is made hard? Question 32. Define: Carbonate Hardness Non-carbonate hardness Total hardness Permanent hardness Temporary hardness Question 33. Describe the three processes under which waste decomposition occurs? Question 34. Differentiate between dispersed growth and fixed growth wastewater treatment processes
