A professor wanted to determine whether an online homework system improved scores on a final exam. In the fall semester, he taught a class using the online homework system (which meant students did their homework online and received instant feedback about their answers along with helpful guidance). In the spring semester, he taught a class without the homework system (which meant students were responsible for doing their homework the old-fashioned way - paper and pencil). The professor made sure to teach the two courses identically (same text, syllabus, tests, meeting time, meeting location, and so on). The table summarizes the results of the two classes on their final exam. Complete parts (a) through (e) below. Click the icon to view the table. KIDE (a) What type of experimental design is this? O A. Randomized blocked design OB. Retrospective study OC. Completely randomized design OD. Prospective study (b) What is the response variable? O Weather Text Statcrunch 11 O 00 Final exam scores O Test

A student found the average boat price for 14 boats in a doc was 250,000. Two more boats were later added. The two new prices were worth 600,000 and 750,000 what was the new average price?

Tom, Bill, Susan and Sandy went bowling. Toms' score was 132, Bills' score was 140, Susan scored 145 and Sandys' score was 128. What was the average score of all four bowlers?

The boxplots show the daily attendance for two fitness gym for one month. Fitness Club Daily Attendance 80 90 100 110 Which Gyms have higher attendance? Justify your answer Answer: Both have 140 attendance Zak's gym All's gym 120 130 140

In golf, scores that are under par for the entire round are shown as negative scores; positive scores are shown for scores that are over par, and 0 is par.  Austin Ernst was the winner of the 2014 Portland Classic in Oregon. Her scores were -3, -3, -3, and -5. Whatwas her overall score?

A vendor had a basket of water melons. Her first costumer said, " sell me half of your water melons plus 1/2 of one water melon." The vendor did so. A second costumer said, “ sell me half of your water melons plus 1/2 of one water melon." The vendor did do too. A third costumer came and said the same thing as the other two said and when the vendor sold him what he wanted, all her water melons were sold. How many water melons were originally in the basket? Select one: O a. 20 O b. 32 С. 7 O d. 15