Does the location of your seat in a classroom play a role in attendance or grade? 400 students in a physics course were randomly assigned to one of four groups. The 100 students in group 1 sat 0 to 4 meters from the front of the class, the 100 students in group 2 sat 4 to 6.5 meters from the front, the 100 students in group 3 sat 6.5 to 9 meters from the front, and the 100 students in group 4 sat 9 to 12 meters from the front. Complete parts (a) through (c). Use the Tech Help button for further assistance. (a) For the first half of the semester, the attendance for the whole class averaged 83%. So, if there is no effect due to seat location, we would expect 83% of students in each group to attend. The data show the attendance history for each group. How many students in each group attended, on average? Is there a significant difference among the groups in attendance patterns? Group Attendance 0.84 0.84 0.84 0.80 The number students who attended in the first group was The number students who attended in the second group was The number of students who attended in the third group was The number of students who attended in the fourth group was

600 students at Drew High School were surveyed. 269 of them were males. 455 of the students' wear jewelry, and 300 of the students that wear jewelry are females.

The boxplots below show the number of marshmallows in a bag, as estimated by students in two elementary school classes. 250 225 200 175 150 125 100 75 50 25 0 Ms. Apple's Class Which class has more students?? A. O Ms. Apple's class B. Ms. Banana's class C. O Both classes have the same number of students. D. O It is impossible to tell from the boxplots. HI Ms. Banana's Class one answer.

Match these values of r with the accompanying scatterplots: - 0.994, 0.76, 0.994, - 0.374, and - 0.76. Click the icon to view the scatterplots. Match the values of r to the scatterplots. i Scatterplots Scatterplot 1, r= Scatterplot 2, r= Scatterplot 3, r = Scatterplot 1 Scatterplot 2 Scatterplot 3 Scatterplot 4, r= 8- 8- 8- Scatterplot 5, r = 6- 6- 6- > 4- 4- 4- 2- 2- 2- 0+ 0- 0- 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 Scatterplot 4 Scatterplot 5 8- 6- -2- -4– > 4- -6- 2- -8- 04 0.2 0.4 0.6 0.8 1 0.2 0.4 0.6 0.8 1 X of of of of of

During a prior semester the class went to the Alumni Field House, flew various types of balsa wood airplanes and collected information about the flight distances and flight times of these planes.  Identify the units of interest for this study.   A. Class Members   B. Balsa wood airplanes   C. Flight distances and times   D. Campus buildings

Twenty-nine college students, identified as having a positive attitude about Mitt Romney as compared to Barack Obama in the 2012 presidential election, were asked to rate how trustworthy the face of Mitt Romney appeared, as represented in their mental image of Mitt Romney’s face. Ratings were on a scale of 0 to 7, with 0 being “not at all trustworthy” and 7 being “extremely trustworthy.” Here are the 29 ratings:  2.6 3.2 3.7 3.3 3.4 3.6 3.7 3.8 3.9 4.1 4.2 4.9 5.7 4.2 3.9 3.2 4.5 5.0 5.0 4.6 4.6 3.9 3.9 5.3 2.8 2.6 3.0 3.3 3.7   a 95% confidence interval for the mean rating. Is there significant evidence at the 5% level that the mean rating is greater than 3.5 (a neutral rating)?

600 students at Drew High School were surveyed. 269 of them were males. 455 of the students' wear jewelry, and 300 of the students that wear jewelry are females.

A group of 422 students were surveyed about the courses they were taking at their college with the following results:245 students said they were taking Math.255 students said they were taking English.139 students said they were taking History.129 students said they were taking Math and English.86 students said they were taking Math and History.71 students said they were taking English and History.32 students said they were taking all three courses.How many students took English and History, but not Math     ?

Match these values of r with the accompanying scatterplots: 1, 0.997, - 0.405, 0.405, and - 0.761. W Click the icon to view the scatterplots. i Scatterplots Match the values of r to the scatterplots. Scatterplot 1, r= Scatterplot 2, r = Scatterplot 1 Scatterplot 2 Scat Scatterplot 3, r= 8- 8- 8- Scatterplot 4, r = 6- 6- 6- Scatterplot 5, r= > 4- 4- 4- 2- 2- 2- 0+ 0.2 0,4 0,6 0.8 0- 0.2 0.4 0.6 0.8 0+ 0.2 0.4 1 1 Scatterplot 4 Scatterplot 5 15- 8- 14- 6- 13- 4- 12- 11- 2- 10+ ó 0.2 0.4 0.6 0.8 0- 0.2 0.4 0.6 0.8 1 Print Done