An education researcher was interested in examining the effect of the teaching method and the teacher on students' reading levels. 257 students participated in an experi- ment. There were two different teachers (Juliana and Felix) and three different teaching methods (A, B, and C). Students were randomly assigned to a teaching method and teacher. At the end of the semester the students took a reading test on which they received a score out of 20. Students who studied with Felix using method B achieved the highest scores. Identify the factor(s) in the experiment and the number of levels for each. Score on reading test (20 levels) The teacher and teaching method combination (6 levels) Juliana and method A, Juliana and method B, Juliana and method C, Felix and method A, Felix and method B, Felix and method C (6 levels) Teaching method (3 levels), teacher (2 levels), score on reading test (20 levels) Teaching method (3 levels) and teacher (2 levels) 39. In a survey, students are asked how many hours they study in a typical week. A five-number summary of the responses is: 2, 7, 14, 19, 39. Which interval describes the number of hours spent studying in a typical week for about 25% of the students sampled? 2 to 14 2 to 39 7 to 19 14 to 39 19 to 39. A random sample of 150 yachts sold in Canada last year was taken. A regression to predict the price fin thousands of dollars) from length (in metres) has an R2 = 15.2%. What would you predict about the price of the yacht whose length was two standard deviations below the mean? . The price should be 0.780 SDs below the mean in price. . The price should be 0.390 SDs below the mean in price . The price should be 1 SD below the mean in price. . The price should be 1.842 SDs below the mean in price