Answer:
Since the calculated Z falls in the critical region therefore the null hypothesis is rejected and concluded that there is a difference between the views of these two populations.
Step-by-step explanation:
1) Formulate the hypotheses:
H0 : p1=p2
Ha: p1 ≠ p2
2) The significance level is chosen at ∝= 0.1
3) The critical region is Z∝/2 ≥ ± 1.645
4) The test statistic under H0 is
Z = p1^- p2^/ √p^q^( 1/n1 + 1/n2)
p1^= proportion of of teenagers liking the new product.
p2^ = proportion of of parents of young children liking the new product.
p1^= 4/5
p2^= 1/5
p^= 5(0.8) + 5(0.2)/5+5= 4+1/10= 0.5
q^= 0.5
Thus
Z= p1^- p2^/ √p^q^( 1/n1 + 1/n2)
z= 0.8-0.2/√0.5*0.5( 1/5 + 1/5)
z= 0.6/ 0.316227
z= 1.897
5) Conclusion:
Since the calculated Z falls in the critical region therefore the null hypothesis is rejected and concluded that there is a difference between the views of these two populations.
10 POINTS FOR THE CORRECT ANSWER THIS IS DUE TODAY PLEASE HELP ME
Answer:
Step-by-step explanation:
8
1. 3, 4
2. odd number, even number
3. 5, 5
4. odd number, odd number
5. 2, 3
6. 1, 3
7. 7, 1
Answer:
Step-by-step explanation:
4. odd number, odd number
5. 2, 3
6. 1, 3
7. 7, 1
Hey, can someone please help me with this? I don’t know how to solve it.
Thank you.
Answer:
24
Step-by-step explanation:
in a drawer, there are 3 white socks, 4 black socks, and 2 brown socks. You pick out a sock, replace or, turn pick put a 2nd sock. What is the probability that you will pick a brown then black?
A) 12/81
B) 6/81
C) 8/81
I believe the answer is B) 6/81
Solve the inequality for w.
4+4ws-16
Simplify your answer as much as possible.
Answer:
The answer is 4ws - 12
Step-by-step explanation:
1) Collect like terms.
[tex]4ws + (4 - 16)[/tex]
2) Simplify.
[tex]4ws - 12[/tex]
therefor, the answer is 4ws - 12.
Create an expression equivalent to 4(3x+2y)
Answer:12x+8y
Step-by-step explanation:Simplify the expression
The expression equivalent to 4(3x+2y) is 12x +8y.
What is the equivalent expression?Equivalent expressions are expressions that have similar value or worth but do not look the same.
Create an expression equivalent to 4(3x+2y).
The equivalent expression is determined in the following steps given below.
[tex]\rm =4(3x+2y)\\\\=4 \times 3x+4\times 2y\\\\=12x+8y[/tex]
Hence, the expression equivalent to 4(3x+2y) is 12x +8y.
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help please!! | no links
The Martinez family ordered a large pizza pie for dinner. After everyone ate, one slice was left in the box forming a 75∘angle. Use the provided protractor below to explain how to construct a 75∘angle.
Answer:
,,,,,,,,,,,,,,,,,,,,,
Quadrilateral CDEF is similar to quadrilateral GHIJ. Find the measure of side IJ. Round your answer to the nearest tenth if necessary. Figures are not drawn to scale.
Thank you:)
Answer:
the answer is 5425.23
Step-by-step explanation:
Since this is a multistep equat you would need a calculator for this
HAiiiiiiii help T-T...
it will be helpful
Answer:
The popsicle stick is 11 and 6/10 inches and 4.9 centimeters.
The pencil is 7 and 3/10 inches and 2.14 centimeters.
The paperclip is 6 and 3/10 inches and 2.8 centimeters.
Step-by-step explanation:
Just look at where the red dotted lines are
hope this helps
Describe the transformation shown in the graph
Answer:
270 degrees CCW rotationStep-by-step explanation:
This is 90 degrees CW or 270 degrees CCW rotationCorrect choice is C or orange tile
15% of customers that come to your
taco truck order two tacos. If 300 guests
come to your store, how many of them
will you expect to order two tacos?
NO LINKS
Answer:
45
Explanation:
No explanation
How many 5-letter arrangements of the letters T, E, X, A, S can be created if each
letter is used only once?
Answer:
Well theres Texas of course then Taxes..then i dont know any more that make sense
Step-by-step explanation:
☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆☆*: .。..。.:*☆
☁Brainliest is greatly appreciated☁
Hope this helps!!
- Brooklynn Deka
There are 120 ways to arrange 5 letter wor with each letter is used only once.
What is Permutations?A permutation is an arrangement of objects in a definite order. The members or elements of sets are arranged here in a sequence or linear order.
Here, 5 letters are arranged in 5! ways
5! = 5 X 4 X 3 X 2 X 1
= 120
Thus, there are 120 ways to arrange 5 letter wor with each letter is used only once.
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Please help, how many terms are in the expression?
Answer:
4
Step-by-step explanation:
Twice x decreased by 4 is 36. What is x
Answer: x=16
Step-by-step explanation:
2x+4=36
Subtract 4 from both sides and get
2x=32
Divide both sides by 2 to isolate x and you get
x=16
Please help me it would mean a lot !!!!!!!!!!!!!!
Answer:
Step-by-step explanation:
Given
f(x) = 4x + 7
so
f(a + h) = 4(a + h) + h
= 4a + 4h +h
= 4a + 5h
f(a) = 4a + 7
now by the question
[tex]\frac{f(a+h) - f(a)}{h}\\=\frac{4a + 5h - 4a + 7}{h}\\=\frac{ 5h + 7}{h} \\= \frac{5h}{h} + \frac{7}{h} \\= 5 +\frac{7}{h}[/tex]
hope it helps :)
How many 10ths equivalent to 3/5
Answer: 6 tenths
Step-by-step explanation:
3/5 = 6/10 (multiply by 2)
The second angle of a triangle is four times the first and the third is 5 degrees
more than twice the first. Find the measures of the angles.
Answer:
25
100
55
Step-by-step explanation:
Givens
Let the first angle = x
Let the second angle = 4x
Let the third angle = 2x + 5
All triangles have 180
Equation
x + 4x + 2x + 5 = 180
Solution
Begin by combining like terms
7x + 5 = 180
7x = 180 - 5
7x = 175
7x/7 = 175/7
x = 25
Answer
First angle = x = 25
Second angle = 4x = 100
Third angle = 2x + 5 = 55
Total 180
Natalie is trying to pick out an outfit for the first day of school. She can choose from 7 pairs of pants, 2 t-shirts, and 2 pairs of shoes. How many different outfits does Natalie have to choose from?
Answer:
Shirt A, Skirt A, Shoe A
Shirt A, Skirt A, Shoe B
Shirt A, Skirt B, Shoe A
Shirt A, Skirt B, Shoe B
Shirt A, Skirt C, Shoe A
Shirt A, Skirt C, Shoe B
The number of ways Natalie has to choose outfits for her first day school is 28 ways.
What is the Permutations?Permutations are different ways of arranging objects in a definite order. It can also be expressed as the rearrangement of items in a linear order of an already ordered set. The symbol nPr is used to denote the number of permutations of n distinct objects, taken r at a time.
Given that, Natalie is trying to pick out an outfit for the first day of school. She can choose from 7 pairs of pants, 2 t-shirts, and 2 pairs of shoes.
Let 7 pairs of pants be P1, P2, P3, P4, P5, P6 and P7.
Let 2 t-shirts be T1 and T2
Let 2 pairs of shoes be S1 and S2
Now,
1) P1, T1, S1
2) P1, T2, S2
3) P2, T1, S1
4) P2, T2, S2
5) P3, T1, S1
6) P3, T2, S2
7) P4, T1, S1
8) P4, T2, S2
9) P5, T1, S1
10) P5, T2, S2
11) P6, T1, S1
12) P6, T2, S2
13) P7, T1, S1
14) P7, T2, S2
15) P1, T1, S2
16) P1, T2, S1
17) P2, T1, S2
18) P2, T2, S1
19) P3, T1, S2
20) P3, T2, S1
21) P4, T1, S2
22) P4, T2, S1
23) P5, T1, S2
24) P5, T2, S1
25) P6, T1, S2
26) P6, T2, S1
27) P7, T1, S2
28) P7, T2, S1
Other way = 7×2×2
= 28 ways
Therefore, the number of ways is 28 ways.
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Find the missing term in the
geometric sequence.
13,[ ? 1,208
Answer:
?=52 or ?=-52
Step-by-step explanation:
Find the geometric mean:
?=sqrt(13*208)
?=sqrt(2704)
?=±52
So ? can be either 52 OR -52. Keep in mind that since we have an odd number of terms in the sequence, -52 is a possible missing term.
13*4=52, 52*4=208
13*-4=-52, -52*-4=208
2- Describe the cross section
The cross-section cut by the plane yields a quadrilateral with length and width equal to the length and width of the face that is parallel to the plane.
a triangle has a length of 15cm and 17cm. select all the values of its third side that would make it a right triangle.
options are:
8cm
29cm
2cm
514 squared
29 squared
Answer:
8cm & 514 squared are correct answers
Step-by-step explanation:
WILL NAME BRAINLIST PLEASE
Use the table to write a linear function that relates y to x . PLEASE NO HACKERS
y=
Answer:
x = -4y
Hope that helps! :)
-Aphrodite
Step-by-step explanation:
Answer please !! Due in 45 minutes m
Answer:
(-3,3)
Step-by-step explanation:
Using elimination:
Multiply the first equation by 8 and the second by 5 which equals
40x+56y=48
-40-60y=-60
Now you add them together
40x+(-40x)=0 so that crosses out
56y+(-60y)= -4y
48+(-60)=-12
You now have -4y=-12
Divide by -4
y=3
Now plug in y to any of the equations
5x+7(3)=6
5x+21=6
Subtract 21 from both sides
5x=-15
Divide by 5
x=-3
Your final solution is (-3,3)
Use the matrix tool to solve the system of equations. Choose the correct
ordered pair.
4x - 7y = -5
-6x+ 5y = 2
PLEASE HELP
Select all the correct statements.
Answer:
C,D,E,F
Step-by-step explanation:
A amplitude is 2
B period is 4pi
Answer:
f option is write
Step-by-step explanation:
because it is true
mark me brainlist
What is the amplitude of the function?
A)2
B)3
C)4
D)5
The amplitude of the function is the range A = 3
What are domain and range?The domain of a function is the set of values that we are allowed to plug into our function. This set is the x values in a function such as f(x). The range of a function is the set of values that the function assumes. This set is the values that the function shoots out after we plug an x value in.
The range is the set of outputs of a relation or function. In other words, it's the set of possible y values. Recall that ordered pairs are of the form (x,y) so the y coordinate is listed after the x. The output is listed after the input.
Given data ,
Let the amplitude of the function be represented as A
Now , the value of A is
The range of the function = Amplitude x 2
And , Amplitude of the function A = | max - min | / 2
On simplifying , we get
A = | -4 - 2 | / 2
A = 6/2
A = 3
Therefore , the value of A is 3
Hence , the amplitude is A = 3
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Which expression is equivalent to 6x-9,
3
Answer:
the expresion its equal at the d9feremce between you and the excercise so its 7
4. Ethan can run 3 miles in 30 minutes. At this rate, how long will it take Ethan to run one
mile?
3(x-4)^2=27 solution
Answer:
x = 11
x = 7
Step-by-step explanation:
divide each side by 3 to get:
(x-4)² = 9
(x-4)² is the difference of two squares and has these factors:
(x+2)(x-2) = 9
x + 2 = 9; x = 7
x - 2 = 9; x = 11
Someone please help me I’ve been trying all day!
NO LINKS , answers only
I MEAN IT!!!!
Answer:
Step-by-step explanation:
You want to set up a system. We are given some points fo we can set up inputs and outputs. F(0) = 5, given by point (0,5). and F(3)=135, given by point (3,135). The exponential function general equation is F(x)= a(b)^x. plug in out functions into the general equation to get a(b)^0=5 and a(b)^3=135. Then you simplify and solve for a. In the equation a*b^0=5, anything to the power of 0 is 1. so a*1=5. Therefore a=5. we plug in the a to the second equation to find b. 5*b^3=135. b^3=27. b=3 from simplifying. Therefore, the equation should be 5(3)^x. THATS IT!