Answer:
D
Step-by-step explanation:
An automobile manufacturer claims that its jeep has a 31.2 miles/gallon (MPG) rating. An independent testing firm has been contracted to test the MPG for this jeep since it is believed that the jeep has an incorrect manufacturer's MPG rating. After testing 230 jeeps, they found a mean MPG of 31.4. Assume the standard deviation is known to be 2.5. A level of significance of 0.05 will be used. Make a decision to reject or fail to reject the null hypothes
Answer:
we will fail to reject the null hypothesis and conclude that there is insufficient evidence to support the claim that the jeep has an incorrect manufacturer's MPG rating
Step-by-step explanation:
We are given;
Population mean; μ = 31.2
Sample mean; x¯ = 31.4
Sample size; n = 230
standard deviation; σ = 2.5
Significance level = 0.05
Let's define the hypotheses;
Null hypothesis; H0: μ = 31.2
Alternative hypothesis; Ha: μ ≠ 31.2
Formula for the test statistic is;
z = (x¯ - μ)/(σ/√n)
z = (31.4 - 31.2)/(2.5/√230)
z = 0.2/0.4564
z = 0.44
From online p-value from z-score calculator attached and using;
z = 0.44; two tailed hypothesis; significance value = 0.05
We have;
P-value = 0.659937
This p-value is greater than the significance value and thus, we will fail to reject the null hypothesis and conclude that there is insufficient evidence to support the claim that the jeep has an incorrect manufacturer's MPG rating
HELP ME ASAP, DUE TODAY!!!!!!
WILL MARK BRAINIEST
Answer:
Q' = ( 1, 3 )
R' = ( 3, -3)
S' = ( 0, -2)
T' = ( -2, 1 )
Beth bought six candy bars for a total of $16.80. How much
did each candy bar cost?
Write and solve a multiplication equation to find out how much each candy bar
cost.
Answer:
16.80 divided by 6 equals 2.8
Multiple all the coordinates by 1/5.
Answer:
(-1,2) , (2,-1), (2,-1) , (-2,1)
Step-by-step explanation:
-5 x 0.2=-1
5 x 0.2=1
10 x 0.2= 2
-10x 0.2=-2
-2x - 8 - 7x + 2 = i dont get math
Answer:
-9x-6
Step-by-step explanation:
Please help. I dont understand how to do this. Enter the coordinates of the vertices of (Ry-axis ∘ r(90°, O))(QRST).
Answer:
I think it's
Q = ( 1 , 3 )
R = ( 3 , 3 )
S = ( 0 , 2 )
T = ( -2 , 1 )
Step-by-step explanation:
please tell me if this is wrong.
Hope this helps!
Please help! I've been stuck on these questions for awhile!
Marco bought a 64 ounce bag of popcorn.
He ate 5% of the bag with his lunch. How
much popcorn did he eat at lunch?
Answer:
3.2 ounces.
Step-by-step explanation:
Divide 5 percent by One Hundred,
5/100 = 0.05
Multiply 0.05 by 64
0.05x64= 3.2
Answer:
3.2
Step-by-step explanation:
Find 5% of 64
10% = 6.4 (64 divided by 10)
5% = 6.4÷2= 3.2
in a congregation of 300 members, 130 have hymn books, 90 have bibles and 100 have neither. How many have both hymn book and bible
Answer:
20 members have both hymn books and bibles.
Step-by-step explanation:
Sets
There are two sets of people. One is made up of members who have hymn books, the other one is made up of members who have bibles. From the total members of the congregation, some have neither.
The congregation has 300 members out of which 100 don't have bibles either hymn books. This means that 300-100= 200 members have bibles or hymn books. Since 130 have hymns books and 90 have bibles, there are 90+130=220 members who have either.
The difference of 220 - 200 = 20 is the number of members who have both hymn books and bibles.
njhgfdszdfghjkllllllklklk
Answer:
dfgfgyhjfyhujlkmnjhg lol-
Step-by-step explanation:
There are 44 students in the band . If eleven of them own their own instrument, what percent do NOT own their own instrument?
Answer:
75%
Step-by-step explanation:
Answer:
25%
Step-by-step explanation:
You can tell since it is 11/44 as a fraction and if there are 4 11's, it will be 44 and a percent that is equal to 100 but has four "places" is 25%
Explain the pattern that you notice when dividing by 10, 100, and 1,000
Answer:
when you divide by 100 it is .1 but when you divide by 1000 it is .01 so every time you divide you move the decimal up by one
I hope this helps:
Write an equation to show " buying 2 boxes of crayons and $4.00 each."
Answer:
4+4is the answer hope ot helps
if the measure of <4=56°, then the measure of <5=?
Answer:i think its 70
Step-by-step explanation:
Which statements are correct?
Answer:
Point F and Point D
Hope this helps!!
A glacier in Alaska moves about 29.1 meters a day. About how much farther will it move in 1,000 days than it will move in 100 days?
Answer:
26190 meters
Step-by-step explanation:
The distance moved by a glacier = 29.1 meter per day
For 100 days, the distance moved = 29.1 meter per day * 100 days = 2910 meters
For 1000 days, the distance moved = 29.1 meter per day * 1000 days = 29100 meters
Therefore the distance farther it move in 1,000 days than it will move in 100 days = distance moved in 1000 days - distance moved in 100 days
farther distance = 29100 meters - 2910 meters = 26190 meters
We will find that the glacier moves 10 times more in 1,000 days than in 100 days.
We know that the glacier moves about 29.1 meters per day.
Then we need to find how much it moves in 1,000 days and in 100 days, we will get:
In 1,000 days it moves: (29.1 meters/day)*1,000 days = 29,100 metersin 100 days it moves: (29.1 meters/day)*100 days = 2,910 meters.To find how much farter the glacier moves in 1,000 days than in 100 days we need to take the quotient between the above two distances:
29,100 meters/2,910 meters = 10
So the glacier moves 10 times more in 1,000 days than in 100 days.
If you want to learn more about quotients, you can read:
https://brainly.com/question/7068223
What number is 7 units to the left of -1?
8
6
-8
-6
Answer:
7 units to the left is -6
Step-by-step explanation:
your counting back wards but its not a neg. its positive so the answer is 6
-8
Step-by-step explanation:
7 units to the left is -8
reason is because if you count backwards 7 from -1 you hit -8
-1+-7=-8
What is the scientific notation of 0.000000000012
Answer:
1.2x10^-11
You never start with a zero so you move the decimal 11 spots the right which makes it negative
What is 1+2x3(3+1):::/$/$:7/$.$$,)
What is the solution for x divided by 9>4
Answer:
x>36
Step-by-step explanation:
Multiply 4 by 9 to get x>36
Find the missing angle
268 = n = 0.268
n=
What is the value of n
Answer:
Simplifying
268 + n = 0.268
Solving
268 + n = 0.268
Solving for variable 'n'.
Move all terms containing n to the left, all other terms to the right.
Add '-268' to each side of the equation.
268 + -268 + n = 0.268 + -268
Combine like terms: 268 + -268 = 0
0 + n = 0.268 + -268
n = 0.268 + -268
Combine like terms: 0.268 + -268 = -267.732
n = -267.732
Simplifying
n = -267.732
Step-by-step explanation:
Luis rides his bicycle 3/4 mile in 5 minutes along the bike trail.
Assuming he rides at a constant rate, what is his speed, in miles per hour? Use the table to help find the answer.
Enter your answer in the box.
Answer: 3 mph.
Because....
3/4 of a mile is 0.75 miles.
0.75 miles = 15 minutes
X = 15 * 1 / 0.75
X = 20 minutes takes a mile to travel
20 minutes = 1 mile
60 minutes = X
Clearing X would give:
X = 60/20
X = 3 miles per hour.
Luis rides 3 miles per hour.
* Hopefully this helps:) Mark me the brainliest!!!
Your answer Shadae has 2/4 of a pizza. Robin has 3/8 of a pizza. How much pizza do the girls have altogether? Your answer Samantha drank 1/5 of a gallon of water for breakfast. She drank 3/10 vater after her afternoon workout. How much water did she drink in a
Answer:
Part A. The girls have 7/8 pizza all together.
Part B. Samantha drank 5/10 or 1/2 water that day.
Step-by-step explanation:
Part A. The answer is 7/8 because 2/4 is the same thing as 4/8.
2/4 = 4/8
4/8 + 3/8 = 7/8.
So, for the first question the answer is 7/8.
Part B. The answer is 5/10 because 1/5 = 2/10
1/5 = 2/10
2/10 + 3/10 = 5/10
Hope this helps! :)
Solve and check thanks
I need help with this
Answer:
3 ounces
Step-by-step explanation:
1 ounce = x
28.35 g 85.2g
cross-multiply: 28.35x = 85.2
x = 85.2 ÷ 28.35
x ≈ 3 oz.
Wwhich expression has the greatest value when x=3?
A) 2x^3
B) 2x^3 + 5
C) (2x)^3
D) (x-1)^3
Answer:
C!
a=54
b=59
c=216
d=8
Step-by-step explanation:
Solve the inequalities by graphing. Identify the graph that shows the following equations.
3x – 2y <1
y > 3
Answer:
its 9
Step-by-step explanation:
What is the distance between the points (-1, 8) and (5, 8) in the coordinate plane?
What is the slope of the line?
Answer:
3/4
Step-by-step explanation:
(-4, -4) (4, 2)
x1 y1 x2 y2
(y2-y1) over (x2-x1)
2-(-4) over 4-(-4)
That is 6/8
We can simplify 6/8 to 3/4
