1. There are 25 students who started computer programming in elementary school and 25 students who started computer programming in middle school. The first group had a mean final project grade of 95% and the second group had a mean final project grade of 92%. The line plot shows the differences after 10 rerandomizations. Determine whether the difference in the means of the two groups is significant based on the line plot. Explain your answer.
Answers
the answer is attached below
Answer:
the difference in the means is not significant
Step-by-step explanation:
Let’s begin first by finding the difference between the means of the 2 groups.
Difference in means = 95% - 92% = 3% Now let’s look at the line plot of the 10 rerandomizations. On that plot, 4 of the randomizations have a difference of 3.
Probability of having a difference of 3 = 4 / 10 *100% = 40%
So just by mixing up the scores from both classes and finding the difference between the mean of 2 randomly defined groups, there was a difference of 3 between the 2 means in 40% of the trials.
Since this probability is so large, the difference in the means is not significant. The line plot shows that it would be very likely that the difference in the means is just due to random chance
Related Questions
What is the amount of sales tax charged on the repaired computer at Store A? pls help not B!
Samara ate 1/3 of a pizza and Vyolet ate 1/5 of the pizza. How much of the pizza did they eat in all?
A number is thrice the second number. The second number is also twice the third number. If the average of the three numbers is 18, find the numbers.
In a group of 50 patrons, 12 patrons like lattes, 11 patrons like espressos, and 6 patrons like both coffee drinks. How many patrons don't like either of the coffee drinks?
true
false
Answers
What is the unit rate of miles driven per hour?
A.
50 miles per hour
B.
25 miles per hour
C.
75 miles per hour
D.
100 miles per hour
Answers
Answer: A. 50 miles per hour
Step-by-step explanation:
in between the lines if you look at the number it goes 25,50,75,100 etc.
Answers
radius = 20 mm
Area of a circle = π r²
A = 3.14 * (20mm)²
A = 3.14 * 400mm²
A = 1,256 mm²
400mm² ; 628.57mm² ; and mm² ARE NOT THE AREA OF A CIRCLE
Answer:
thx for the answer
Step-by-step explanation:
(x + 1)(2+9x)
(x + 1) (9x + 2)
(9x + 2)(x + 1)
Line 1 to Line 2:
Line 1:
Line 2 to Line 3:
Line 2:
Answer Attempt 1 out of 2
Line 3:
<
Answers
Answer:
Line 1:
Line 1 to Line 2: Commutative property of addition.
Line 2:
Line 2 to Line 3: Commutative property of multiplication.
Line 3:
Could not answer: Line 1, Line 2, and Line 3. Are there options for the question?
If so, label them and I will edit the answer ASAP
Answers
Answer:
C.) No solution
Step-by-step explanation:
Just divide 3 by both sides.
3/2 divided by 3/1
3/2 * 1/3 = 1/2
y = 1/2x + 2 is the solution
Answers
Final answer:
In the scenario, a right triangle is formed with the board, the ground, and the wall. We use the Pythagorean theorem to find the height the board will reach up the wall and get the result as 8 feet.
Explanation:
This is a geometry problem where we need to determine the height the board will reach up the wall. This appears to be a right triangle since the board is leaning against the wall. The length of the board is the hypotenuse (10 feet), and the distance from the wall is one of the legs of the triangle (6 feet).
To find the height the board will reach up the wall, which is the other leg of the triangle, we can use the Pythagorean theorem: a² + b² = c² where a and b are the legs and c is the hypotenuse.
Substitute the given values to the formula: a² + 6² = 10²
Solving this equation gives: a² = 10² - 6²
Then, a² = 64
So, a = √64 = 8
Thus, the height the board will reach up the wall is 8 feet.
Learn more about the Pythagorean theorem here:
#SPJ3