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

Q: A retailer received trade discounts of 12%, 7% from a manufacturer. They then received a further…

A: CP = The cost price of the item to the shopkeeper. The price at which the shopkeeper has purchased…

Q: For a particular event, 808 tickets were sold for a total of $2032. If students paid $2 per ticket…

A:

Q: My sister Donna started a trading card collection last year, but unfortunately, she can’t seem to…

A: If (1/a) of the item is reduced from the lot of x items then remaining items would be equal to…

Q: Members of the computer club voted for their favorite snack. 3 out of 5 people voted for chips. The…

A: Members of the computer club voted for their favorite snack. 3 out of 5 people voted for chips. The…

Q: An instructor grades exam, 20%; term paper, 30%; final exam, 50%; A student had grades of 83, 82 and…

A:

Q: Ray scored 75 marks for his first math test. His math score increased by 20% on his second math…

A:

Q: In university A, the number of graduate students was approximately 24,000 fewer than the number of…

A: Answer:- Let , the number of undergraduate students was "n" in University A. Given, In university A,…

Q: "Ned No-Idea" was what everyone called him. His real name was Ned Franklin, but everywhere he went…

A: Number of relatives= 13Number of ideas each relative sent= 11

Q: Gina opened up a checking account with a $50 deposit. On Friday,she received her paycheck of…

A:

Q: To get a B in math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests…

A:

Q: A study found that the average home price for 14 houses in one community was $285,000.  Two more…

A: We need to find new average price.

Q: In a class of 24 students, 23 exams are graded. The average for the class was 85. What would the…

A: Given, Class contain 24 in which 23 have already graded. The average of these 23 students was 85.

Q: To earn an A in a course, you must have a final average of at least 90%. On the first four…

A: Let x be a final examination counts as two grades 2xFinal average is  90%Total no of…

Q: You are the manager of World Wide Athlete, a chain of six sporting goods shops in your area. The…

A: The shop sells 15 racing bikes per week and original sales price for bike is $649.99 each. In one…

Q: Gonzalo enrolled in a class where the homework counts as 30% of the final average, two midterm exams…

A:

Q: Mr. Jordan is traveling to Helsinki Finland with his Gibson Les Paul guitar for a competition during…

A: To find: How many different ways can he travel from Toronto to Helsinki.

Q: Last year’s freshman class at Big State University totaled 5,324 students. Of those, 1,253 received…

A:

Q: he admission fee for a Fairfax basketball game is $5 for students and $7 for adults. At one of the…

A: The admission fee for a Fairfax basketball game is $5 for students and $7 for adults. At one of the…

Q: The COTC Math Club wants to make t-shirts to celebrate "Pi Day". The president of the club calls…

A: T-Shirts - R- Us set up fee = 24 and $3 per shirt cost of 5 shirts = 5 (cost per shirt ) + setup fee…

Q: Two classes took an exam. In the first class, the average score was exactly 78%. In the second…

A: Two classes took an examIn the first class, the average score wasexactly 78%. In the second class,…

Q: Last year's freshman class at Big State University totaled 5,348 students. Of those, 1,263 received…

A:

Q: When Jaylen started high school, 1, 430 students attended his school. On the day of his graduation,…

A: Starting, NO=1430Now, n =1001

Q: A water park offers a season pass for 64 per person. Without a season pass, admission for the water…

A:

Q: One of the members of staff from the software organisation travels to Birmingham on a business trip.…

A:

Q: The Spanish club is arranging a trip to a Mexican restaurant in a nearby city. Those who go must…

A: Let n students be sign up for this trip in order to limit the cost to $12 per student.Then the total…

Q: To get a B in​ math, Alexandria Pappas must average 80 on five tests. Scores on the first four tests…

A: Given, Scores on the first four tests are 81​,76​, 83​, and 77.

Q: A grade 11 class, on a field trip to Montreal, had lunch in a restaurant. The bill came to $239.25.…

A:

Q: Your boutique buys a hoodie for $15 and sells it for $31.  What is the markup?

A: As we know formula of markup,    Markup =( sale price - cost price )/cost price

Q: For her show "Outfront," Anna can air 5 segments. If she has 13 segments to select from, in hoW many…

A: Total number of segments =13 Number of segment selected =5