Therefore, we lack adequate data to draw the conclusion that population means differ.
What does the test statistic actually mean?A result of a statistical test of a hypothesis is a number known as the test statistic. It displays how closely the distribution predicted by your observed data fit the null hypothesis of that statistical test.
Here,
First hypothesis : [tex]H_{0}[/tex] : u1 - u2 = 0
Alternate hypothesis : [tex]H_{A}[/tex]: u1 - u2 ≠ 0
for 0.1 level with two tail test , critical z = 1.645
Rule of Decision: [tex]H_{0}[/tex] Reject if the test statistic's absolute value is |z|>1.645
California , New York
x1 = 64510.00 x2 = 62900.00
n1 = 45 n2 = 45
σ1 = 8200.00 σ2 = 7800.00
std error σx1-x2=√(σ21/n1+σ22/n2)=[tex]\sqrt{(8200^2/45+7800^2/45) }[/tex]= 1687.0750
test stat z =(x1-x2-Δo)/σx1-x2 =(64510-62900)/1687.0750 = 0.95
We cannot reject the null hypothesis because the test statistic does not fall into the rejection zone.
Therefore, we lack adequate data to draw the conclusion that population means differ.
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Alicia’s family wants to save for a four-year college education for her. After some research, they estimate that the total cost will be about $78,000. How much should her family save if she is 12 years old and plans to go to college in 6 years?
Select one:
$6,500 each month
$1,100 each month
$4,350 each month
$550 each month
Answer:
Step-by-step explanation:
$1,100
The town of Butler received 6 more inches of snow than the town of Chicora. Let c represent the amount of snow in Chicora. Which algebraic expression represents the amount of snow in Butler?
pls help i have been stuck on this for like an hour now.
Answer:
y=c+6
Step-by-step explanation:
this is the only equation I could think that fits the situation
hope this helped!
Please Help ASAP!!!!!!!!
Answer:
2 i think
Step-by-step explanation:
What is the approximate area of the shaded sector in the circle shown below?
A. 22.90 cm2
5.4 cm
B. 8.48 cm2
c
C. 11.45 cm2
180°
D. 16.96 cm2
Answer:
The correct answer is [tex]11.45 cm. ^2[/tex]
Step-by-step explanation:
I just got it correct.
The approximate area of the shaded sector in the circle shown is,
⇒ 11.45 cm²
What is mean by Circle?The circle is a closed two dimensional figure , in which the set of all points is equidistance from the center.
We have to given that;
A circle is shown in figure with diameter 5.4 cm.
Hence, Radius of circle = 5.4 / 2 = 2.7 cm
Since, Area of circle = πr²
Hence, We get;
Area of circle = πr²
Area of circle = 3.14 × 2.7²
Area of circle = 22.89 cm²
Thus, Area of shaded region of the circle is,
⇒ 22.89 cm²
⇒ 22.89/2 cm²
⇒ 11.45 cm²
Thus, The approximate area of the shaded sector in the circle shown is,
⇒ 11.45 cm²
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Za and Zb are complementary angles. Za measures 37°.
What is the measure of Zb?
Answer: 53 degrees
Step-by-step explanation:
Complementary angles add up to 90 degrees. Subtract Za from the 90. 90-37=53.
PLZ HELP
Determine if the sequence is arithmetic or geometric, and find the common difference or ratio.
x 1 2 3 4
f(x) 81 72 63 54
Arithmetic, common difference = 9
Arithmetic, common difference = −9
Geometric, common ratio = 9
Geometric, common ratio = −9
Answer:
The second item is the correct one , i mean arithmetic , common difference = -9 .
Step-by-step explanation:
Hope this helps u , good luck ;)
Answer:
The correct option among the others is B
Step-by-step explanation:
David made a batch of 5 liters of blue liquid everyday for 3 days how many milliliters of blue liquid did he make in all
Answer: 15000 millimeters
Step-by-step explanation:
Since David David made a batch of 5 liters of blue liquid everyday. The number of liters that'll be made for 3 days will be:
= 5 liters × 3
= 15 liters
We should note that 1000 millimeters = 1 liter. Therefore, 15 liters will be converted to millimeters which will be:
= 15 × 1000
= 15000 millimeters
How many years would 18 months be?
1.5 years
1.8 months
about 2 years
Answer:
18 months=1.5 years
Step-by-step explanation:
I hope this helps
Answer:
1.5 years
Step-by-step explanation:
1 year = 12 months
18/12 = 1[tex]\frac{6}{12}[/tex] = 1.5 years
A man flies a kite and lets out 100 feet of string. The angle of elevation of the string is 52°. How far away is the man from the spot directly under the kite?
Answer:
61.57 ft
Step-by-step explanation:
Look at the picture. You need to find the base value.
so we can sue the cosine formula here.
cos x° = adjacent / hypotaneous
cos 52 ° = adj / 100
adjacent = 100 cos 52°
=61.57 ft
Answer:
the man is 61.6 ft away from the spot directly under the kite.
Step-by-step explanation:
in order to find the bottom length which is b we need to First find the height of this right angle triangle.
to find the height we need to use sin:
sin 52° = X/100
sin 52° * 100 = h
h= 78.8 ft
next we can find b which is the base of the triangle.
a^2+b^2=c^2
100^2 +b^2 = 78.8^2
100^2 -78.8^2 = b^2
b^2= 3790.56
b= √3790.56
b= 61.6 ft
therefore the man is 61.6 ft away from the spot directly under the kite.
how do i Add 5/8 = 3/7
Answer:
Add 11/56
Step-by-step explanation:
3/7 = 24/56 (×8)
5/8 = 35/56 (×7)
35/56 - 24/56 = 11/56
PLEASE HELP DUE MONDAY
P is a function that gives the cost, in dollars, of mailing a letter from the United States to
Mexico in 2018 based on the weight of the letter in ounces, w.
1. How much does it cost to send a letter
that weighs 1.5 ounces? 2 ounces?
2. Sketch a graph of the function on the
coordinate plane
postage (dollars)
Answer:
1: 1.5 would be 1.72 and 2 would also be 1.72.
2: Draw points at (0,1.15) (1, 1.72) (2, 2.29) (3, 2.86) Flatline Connections
Step-by-step explanation:
If Im reading it right you take 1.5 ounces and plug it into the function (it would be between 1 and 2) it would spit out 1.72 (which I'm assuming is the postage)
It will cost
(i) $1.72 if weight is 1.5 ounces,to send a letter.
(ii)$1.72 if weight is 2 ounces, to send a letter.
first, let us find a relation between postage(dollars) and weight(ounces)
this is an equation of a straight line passing through (0,1.5) and (2,0).
y=mx+c
[tex]P(w)=\frac{1.5-0}{0-2} x + c\\\\P(w)=-0.75x+c\\\\[/tex]
since it passes through (2,0) it will satisfy the equation
therefore, c =1.5
the equation will be: [tex]P(w)=-0.75w+1.5[/tex]
after we merge both the relations, we find a single relation between cost and weight
since the cost value is 1.72 in 1 <w [tex]\leq[/tex]2
if weight is 1.5 ounces it is clearly $1.72
if weight is 2 ounces it is clearly $1.72
therefore, it will cost
(i) $1.72 if weight is 1.5 ounces,to send a letter.
(ii)$1.72 if weight is 2 ounces, to send a letter.
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HELP ASAP ILL MARK BRAINLIEST
What is the distance between tho y-Intercept of the function (x) = 3(2) and tho y-intercept of the the function g(x) represented by the table below?
х
g(x)
-5
15
- 2
3
2
-13
и |
-25
2 units
3 units
O 8 units
O 9 units
Im pretty sure its 8 units
Given that -5 < -3, which statement is not true?
-5 is to the left of -3 on the number line.
-3 is to the right of -5 on the number line.
-3 > -5
-3 is less than -5,
Answer:
-3 is less than -5
Step-by-step explanation:
the bigger the negative number is, the less it has a great amount of value.
-3>-5 is correct because -3 is greater than -5
-5 is to the left of -3 on the number line is true
-3 is to the right of -5 on the number line is true as well
hope this helps! : )
Please answer this ASAP !!
Thank you (picture attached).
Answer:
y=12.25x
i cannot see the question but the slope will be the increase of the certain product
the y is the dependent factor that will increase due to the slope/x-intercept
Step-by-step explanation:
4(x+2)=4x+8 need help
Answer:
True
Step-by-step explanation:
Any value of x makes the equation true
All Real numbers
(-∞)(∞)
Convert radians to degrees
Show all the work
6. 3.8 radians
8. 5π/4(this is a fraction)
Answer:
Below in bold.
Step-by-step explanation:
Degrees = radians * 180/π.
6. 3.8 radians = 3.8 * 180 / π
= 217.7 degrees to nearest hundredth.
8. 5π/4 radians = 5π/4 * 180/π
= 5*180/4
= 225 degrees.
Find the mean of the data.
9, 16, 13, 14, 10, 16 , 17, 9
Thanks! Will mark brainly!
Answer:
13
Step-by-step explanation:
The mean of the data is also known as the average. To find the mean/average, add up all the data and divide it by the number of inputs recorded.
9 + 16 + 13 + 14 + 10 + 16 + 17 + 9 = 104
There are 8 terms.
104 / 8 = 13
The mean is 13.
Hope this helps!
The point (3,2) reflected in the x-axis is (
,
).
Reflect (3,2) in the y-axis.
The point (3,2) reflected in the y-axis is (
,
).
Answer:
reflected across the x-axis is 3,-2 and the y axis is -3,2
Step-by-step explanation:
When you reflect over the X axis it will stay the same numbers but change the Y axis sign. the same thing happens to the y -axis but the x changes siogns instead
plzzz help square paralellogram
Answer:
1. x=12
2. x=7
Step-by-step explanation:
I need help with this question,im stuck.
Answer:
4
Step-by-step explanation:
ration of rectangle ABCD to EFGH=> 24 : 12=> 2 : 1
2 : 1 = 8 : FG
=> FG = 4
write a statement that correctly describes the relationship between these two sequences: 2, 4, 6, 8, 10 and 1,2,3,4,5.
Answer:
The relationship between these two sequences is it always doubles. When we look at each sequence, 1, 2, 3, 4, 5, each number is multiplied by 2 to create the other sequence.
1 x 2 = 2.
2 x 2 = 4.
3 x 2 = 6.
4 x 2 = 8.
5 x 2 = 10.
When we arrange these numbers, 2, 4, 6, 8, 10, this is the exact sequence as before. Therefore, this is the relationship.
Answer: 2, 4, 6, 8, 10, < |
|
Step-by-step explanation: | if you just arange the numbers to 1 x 2 = 2 |
2 x 2 = 4 |
2 x 3 = 6 |
and then so on and so on you would get this answerer. |
Which organisms are examples of decomposers?
A. rabbits
B. lions
C. fungi
D. trees
Answer:
C. fungi
Step-by-step explanation:
Here only Fungi is an example of decomposer.
Rabbits and lions are examples of consumers.
Trees are an example of producers.
The following list defines and provides examples of the feeding (trophic) levels that comprise food webs:
Producer: organism on the food chain that can produce its own energy and nutrients. Examples: grasses, Jackalberry tree, Acacia tree
Primary consumer/herbivore: organism that eats mainly plants. Examples: cows, impalas, warthogs, zebras
Secondary consumer/carnivore: organism that eats meat. Examples: leopard, lion
Omnivore: organism that eats a variety of organisms, including plants, animals, and fungi. Examples: humans, aardvarks
Decomposer/detritivores: organisms that break down dead plant and animal material and waste and release it as energy and nutrients in the ecosystem. Examples: bacteria, fungi, termites
Scavenger: animal that eats dead or rotting animal flesh. Examples: vultures, hyenas
Insectivore: organism that mostly eats insects. Example: Red-billed oxpecker
Answer:
C. Fungi
B. Lions
Step-by-step explanation:
C. fungi are called decomposers because they break down the dead and decaying organic matter into simpler substances such as carbon dioxide, water, simple sugars, and mineral salts and provide the nutrients back to the soil
B. A decomposer is a living thing that gets energy by breaking down dead plants and animals, lions eat other animals to get energy.
If you can buy four bulbs of elephant garlic
for $8 then how many can you buy with
$72.50?
Answer:
36 bulbs
Step-by-step explanation:
$8/4 = $2 each
72.50/2 = 36.25
Answer:
36 bulbs with $0.25 left over.
Step-by-step explanation:
4 bulbs for $8
8/4 = 2
1 bulb per $2
72.50/2 = 36.25
find the length of the arc shown in red ASAP
Answer: 16.75
Step-by-step explanation:
you might need to round up to 17 if 16.75 isn't an answer on your assignment
Ed turns 34 and deposits $100 at the end of each month in IRA that earns 9% interest p.A compounded monthly. Find how much will be in the IRA if Ed retires at the age 60.
Answer:
FV= $123,879.85
Step-by-step explanation:
Giving the following information:
Montlhy deposit (A)= $100
Monthly interest rate (i)= 0.09/12= 0.0075
Number of periods (n)= 12*26= 312 months
To calculate the future value, we need to use the following formula:
FV= {A*[(1+i)^n-1]}/i
A= monthly deposit
FV= {100*[(1.0075^312) - 1]} / 0.0075
FV= $123,879.85
Una comercializadora de café necesita construir una bodega con forma de cubo. La capacidad de la bodega debe ser de 216 metros cúbicos ¿cuánto debe medir la arista de la bodega?
Answer:
La arista de la bodega debe medir 6 metros.
Step-by-step explanation:
Podemos encontrar la arista de la bodega sabiendo su volumen:
[tex] V = a^{3} [/tex]
En donde:
V: es el volumen de un cubo = 216 m³
a: es la arista del cubo =?
La arista del cubo es:
[tex] a = \sqrt[3]{V} = \sqrt[3]{216 m^{3}} = 6 m [/tex]
Por lo tanto, la arista de la bodega debe medir 6 metros.
Espero que te sea de utilidad!
7,945100 is equal to which number?
7,945
79.45
0.7945
7.945
Answer:
7.945 Million the answer. yah...
A box plot is shown below: A box and whisker plot is shown using a number line from 20 to 45 with primary markings and labels at 20, 25, 30, 35, 40, 45. In between two primary markings are 4 secondary markings. The box extends from 25 to 39 on the number line. A line in the box is at 33. The whiskers end at 20 and 44. The title of the art is Visitors at the Exhibition, and below the line is written Number of Visitors. What is the median and Q1 of the data set represented on the plot? Median = 30; Q1 = 20 Median = 33; Q1 = 20 Median = 30; Q1 = 25 Median = 33; Q1 = 25
Answer:
the answer is the last one median= 33; Q1= 25
Susan estimated she would spend $250 on school clothes at the start of the school year. She actually ended up spending only $230. What was her percent of error in her calculations?
Answer:
8.70%
Step-by-step explanation:
Percentage error = (difference between estimated value and actual value / actual amount spent) x 100
difference between estimated value and actual value = estimated value - actual amount
$250 - $230 = $20
($20 / $230) x 100 = 8.6957%
answer anybody?? i can't do math like at all lol
Essentially, what we're looking at here are two alternate interior angles.
Wait. What? Alternate interior angles?
It sounds like some super fancy math jargon, but it's a fairly simple concept that I'll try my best to explain. First, let's look at lines L and M as two parallel lines, meaning that these two are lines with equal slopes, and will never intersect. See that line that goes in between the parallel lines L and M? That's called a transversal. It's basically a line that goes through two parallel lines.
Now we know that there's a transversal going through the parallel lines. So what? Well, there's a couple of special attributes to transversals. See the two angles, 7x-7 and 4x+14? As you can tell, these two angles alternate in the interior space between the transversal and the parallel lines.
Alternate interior angles are equal. There's a way to prove that they're equal, but I won't bore you with the specifics since that's not what the question's asking.
If the angles need to be equal for lines L and M to be parallel, we can make an equation that'll solve for x:
7x - 7 = 4x + 14
Subtract 4x from both sides:
7x - 4 x - 7 = 4x - 4x + 14
3x - 7 = 14
Add 7 to both sides:
3x - 7 + 7 = 14 + 7
3x = 21
Divide both sides by 3 to completely isolate x:
[tex]\frac{3x}{3}[/tex] = [tex]\frac{21}{3}[/tex]
x = 7
And that's our answer! If you need me to explain anything any further, just ask!
- breezyツ