Answer:
This known value does not match the measured value at the 95% confidence level.
The 95% confidence interval for value is calculated as 42.92 to 43.78%,
Step-by-step explanation:
The complete question is:
Police have a hit-and-run case and need to identify the brand of red auto paint. The percentage of iron oxide, which gives paint its red color, was determined to be 43.35 ± 0.33% by one method of analysis using five measurements. The color reference provide by the automotive manufacture is 44.21%. What can you conclude about whether the sample matches the reference at a 95% confidence level?
Student's t test is used to compare the two values .
Here n=5
Degrees of freedom =ν= n-1= 5-1=4
The value from t- table for 4 d.f at 95 % confidence interval is 2.776
The test statistic is
x`± t ∝/2(v). S/√n
43.35 ± (2.776)(0.33)/√5
= 43.35 ± 0.43
= 43.78, 42.92
Here the 95% confidence interval for μ calculated is 42.92 to 43.78%, where as color reference provided by the automotive manufacture is 44.21%.
This known value does not match the measured value at the 95% confidence level.
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Answer:
option 3
Step-by-step explanation:
hope it helps!!!!!
Answer:
Each line is 1/8 as you can see the fouth line is 4/8 in both x and y
P is 5 lines to the left and 3 lines.
If each line is 1/8:
In the x: -5/8
In the yy: 3/8
P=(-5/8,3//8)
3 pounds of bannas cost $1.5 What is the costant of this proportionly that relates the cost in dollars y,to the number of pounds of bannas X
Answer:
.50 cents per pound
Step-by-step explanation:
i need help on this question and i will mark brainlist
Answer:
$11.40
Step-by-step explanation:
just do 1.90 x 6 = 11.40
A box is filled with 4 red crayons, 8 blue crayons, and 2 yellow crayons.
A crayon is chosen at random from the box. Find the probability that it is a red or a yellow crayon.
Write your answer as a fraction in simplest form.
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Х
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Answer:
6/14 simplified to 3/7
Step-by-step explanation:
Solved it
Yoshi's yogurt contains 15 calories per ounce. How many calories are in a 5-ounce container of Yoshi's yogurt?
Answer:
The answer is 15*5=75.
Step-by-step explanation:
So to get the answer you need to know how many calories are in a ounce of yogurt which is 15. Then you you multiply 15*5 to get how many calories are in a 5 ounce of yogurt. When you solve 15*5=75, use either a calculator or solve it down on paper. To know that you got the right answer for 15*5= 75 please punch it in on a calculator. I hope this helps if you need any more clarificatio please comment! Thanks!
PLEASE HELP ME FAST!!!
The ratio of boys to girls who play kickball at recess is 6 to 2. There are 18 girls on the team. What is the number of boys who play kickball at recess?
A. 108
B. 54
C. 6
D. 36
Answer:
B
Step-by-step explanation:
6:2
2x9=18
6x9=54
54 boys to 18 girls
The number of boys who play kickball during breaktime is 54.
What is Ratio?A ratio is an ordered pair of numbers a and b, written a / b where b does not equal 0.
Given that, the ratio of boys to girls who play kickball during breaktime is 6 to 2, there are 18 girls on the team,
Let the number of boys be 6x and that of girls be 2x
Therefore, 2x = 18
x = 9
6x = 6*9 = 54
Hence, The number of boys who play kickball during breaktime is 54.
For more references on Ratio, click;
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A quadrilateral with two pairs of consecutive sides congruent and no opposite sides congruent is called a(n)
-kite
-isosceles
-mid segment
-leg
-base
-base angle(s)
-trapezoid
Answer:
a kite
Step-by-step explanation:
What the solution to -3=-3+5x+3x
PLEASE HELP I WILL GIVE 100 points
Using the drawing below to answer the questions that follow
Part A what is the scale factor used when going from the larger rectangle to smaller one?
Part B
What is the length of missing side?
PLEASE HELP
Answer: the scale factor is 1/2
And the missing side is 5.5
Step-by-step explanation:
The larger triangle is twice the smaller triangle
The scale factor is 1/2 and the length of the missings side is 5.5 after using the concept of the scale factor.
What is a scale factor?The ratio among comparable dimensions of an object and a model with that object is known as an exponent in algebra. The replica will be larger if the scale factor is a whole number. The duplicate will be lowered if the step size is a fraction.
It is given that:
The two rectangles are shown in the picture:
Part A what is the scale factor used when going from the larger rectangle to the smaller one?
The scale factor = 8/16 = 1/2
The length of the missings side = 1/2(11) = 5.5
Thus, the scale factor is 1/2 and the length of the missings side is 5.5 after using the concept of the scale factor.
Learn more about the scale factor here:
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Scott has a bag with 144 pieces of candy in it. He gives his sister 25% of the candy. How many pieces of candy does Scott give his sister?
Answer:
Step-by-step explanation:
Scott has 144 pieces of candy
25% is one 4th
144/4=36
he gives to his sister 36
Answer:
Scott gives his sister 36 peices of candy
Step-by-step explanation:
what is greater -.89 or .4
Answer:
.89
Step-by-step explanation:
.89 is greater because it is closer to a whole than .4, which makes .89 greater.
b) Chill Pill Pharmaceuticals is expecting a growth rate of 14% for the next two years due to its new drug. Thereafter it should level to an 8% growth rate. The last dividend paid was $0.65 per share. What price should the stock sell for if investors require 12% return?
Answer:
0.20
Step-by-step explanation:
Average Weekly Earnings The average weeklyearnings in dollars for various industries are listedbelow. Find the percentile rank of each value.
804 736 659 489 777 623 597 524 228
For the same data, what value corresponds to the 40th percentile
Answer:
a. 228- 6th, 489- 17th, 524- 28th, 597- 39th, 623- 50th, 659- 61th, 736- 72th, 777- 83th, 804- 94th
b. 597
Step-by-step explanation:
arrange the data:
228, 489, 524, 597, 623, 659, 736, 777, 804
a. percentile = ((number of items below position + 0.5)/ number of items ) 100
for 228 = (0+0.5/ 9) 100 = 6th
for 489 = (1+0.5/ 9) 100 = 17th
for 524 = (2+0.5/ 9) 100 = 28th
for 597 = (3+0.5/ 9) 100 = 39th
for 623 = (4+0.5/ 9) 100 = 50th
for 659 = (5+0.5/ 9) 100 = 61th
for 736 = (6+0.5/ 9) 100 = 72th
for 777 = (7+0.5/ 9) 100 = 83th
for 804 = (8+0.5/ 9) 100 = 94th
b. The corresponding value for the 40th = number of item( percentile)/ 100
= 9( 40) / 100 = 3.6 approximately 4th which is 597
There are 4 birds and 6 snakes. What is the ratio of birds to snacks?
Answer:
2:3
Step-by-step explanation
To get this you find the greatest common denominator (2) and divide both numbers by it. 4 divided by 2 is 2 and 6 divided by 2 is 3.
Here is a balanced hanger diagram:
A circle has a mass of 3 grams and a square has a mass of 2 grams.
Which is the mass of a triangle?
a. 9/5 grams
b. 715 grams
c. 3 grams
d. 11 grams
Answer:
D
Step-by-step explanation:
11 grams because the the most logical.
Option C. 3 grams is the answer.
Mass given,
One circle = 3 gramsOne square = 2 gramsFor the balanced hanger diagram,
Mass on left arm = Mass on right armMass on left arm = 2.(one triangle) + 6.(one square) + 3.(one circle)
Mass on right arm = 5.(one triangle) + 3.(one square) + 2.(one circle)
Equation for the balanced hanger,
2.(one triangle) + 6.(one square) + 3.(one circle) = 5.(one triangle) + 3.(one square) + 2.(one circle)
Now solve this equation,
(6 - 3).(one square) + (3 - 2).(one circle) = (5 - 2).(one triangle)
3.(one square) + 1.(one circle) = 3.(one triangle)
3.(2) + 1.(3) = 3.(one triangle)
6 + 3 = 3.(one triangle)
One triangle = 3 grams
Therefore, Option (C) will be the correct option.
Learn more,
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please help me solve
Answer:
CD
Step-by-step explanation:
Answer:
3rd one
Step-by-step explanation:
HELP ME PLS BRAINLIST QUICK
Answer:
its the second choice
Step-by-step explanation:
because they need to be opposite plus minis things
There are 3 times as many dogs as cats.
If the total number of dogs and cats is 16, how many dogs are there?
Answer:
there are 12 dogs.
Step-by-step explanation:
d= dogs now plug in the 4 into your equation.
c= cats d=3(4)
d+c=16 d=12
3c+c=16
4c=16 SO THEREFORE THERE ARE 12 DOGS :)
c=4
1) Bob sold burgers for $6 and milkshakes for $4. At the end of the day, he made $422
solve (x - 3)^2 = 81 quadratic equation
Answer:
x=12
Step-by-step:
Square root both sides to get
x-3=9
Then take 3 to the other side
x=9+3
x=12
If the half life of a substance is 4 weeks, how long will it take for 400 mg of this substance to decay to 25 mg?
Step-by-step explanation:
what is meant by mg in this question
A copy machine makes 24 copies per minute. How long does it take to make 138 copies?
A 2-liter bottle of spring water costs $2.02. A 3-liter bottle of the same water costs $2.79.
Which is the better deal? ..
You-pick blueberry farm offers 6 lbs of blueberries for $16.50.
Sketch a graph of the relationship between cost and pounds of blueberries.
ASAP PLS HELP DUE TODAY. WILL GIVE BRAINLIEST IF A GOOD ANSWER EXPLENATION AND CORRECT ANSWER
Rewrite 7 − 8 using the additive inverse and display the new expression on a number line.
Select one:
a.
7 + (−8)
An image of a horizontal number line is shown with labels from negative 2 to positive 8. An arrow begins at 0 and ends at 7. Another arrow begins at 7 and ends at negative 1.
b.
7 + 8
An image of a horizontal number line is shown with labels from 0 to 15. An arrow begins at 0 and ends at 7. Another arrow begins at 7 and ends at 15.
c.
7 − (−8)
An image of a horizontal number line is shown with labels from 0 to 15. An arrow begins at 0 and ends at 7. Another arrow begins at 7 and ends at 15.
d.
8 − 7
An image of a horizontal number line is shown with labels from negative 2 to positive 8. An arrow begins at 0 and ends at 8. Another arrow begins at 8 and ends at 1.
Answer:
[tex]7 + (-8)[/tex]
Step-by-step explanation:
Given
[tex]7 - 8[/tex]
(a): Write as additive inverse.
An additive inverse is of the form a + (-b)
In this case:
[tex]a = 7[/tex]
[tex]b = -8[/tex]
So, the expression can be represented as:
[tex]7 + (-8)[/tex]
(b): Number line representation
When the expression in (a) is solved.
The result is:
[tex]7 - 8 = 7 + (-8) = -1[/tex]
This means that the number line must accommodate 7 and -1.
Having said that, options (b) and (c) are out because their range is 0 to 15 and this excludes -1.
Option (d) is a wrong representation of [tex]7 - 8[/tex]
Hence, (a) is correct
Javier teaches yoga classes at his community center. In a 60-minute class last night, he taught 30 poses. Today, he has a 30-minute class. If he teaches at the same rate, how many poses will Javier teach in today's class?
Answer:
15
Step-by-step explanation:
fifteen is half of 30
b) 7p + 6q- 2p + q = ?
[tex]7p + 6q - 2p + q \\ = (7p - 2p) + (6q + q) \\ = 5p + 7q[/tex]
Answer:
5p+7q is the answer
Step-by-step explanation:
write -12 in a and b form
Answer:
whats ur question i dont understand
Step-by-step explanation:
idu
Answer:
thanks fOr the points
Step-by-step explanation:
1 1/3 divided by 3/4
Answer:
1 7/9
Step-by-step explanation:
Could i have branliest please and a heart
Step-by-step explanation:
11/ 36
hope it helps!
.....
I need help with this please.
Answer:
CCCC.
Step-by-step explanation: