Answer:
The 95% confidence interval for the true difference in the proportion of tomato plants like these that would experience damage after receiving the kelp treatment and no kelp treatment is -0.2690 < [tex]\hat{p}_1-\hat{p}_2[/tex] < 0.02901
Step-by-step explanation:
The given data are;
The number of the group 1 plants that exhibited damage = 12
The number of plants in group 1, n₁ = 50
The number of the group 2 plants that exhibited damage = 18
The number of plants in group 2, n₂ = 50
The proportion of group 1 plants that exhibited damage, [tex]\hat p_1[/tex] = 12/50 = 0.24
The proportion of group 2 plants that exhibited damage, [tex]\hat p_2[/tex] = 18/50 = 0.36
The z-value at 95% = 1.64
The confidence interval is given by the following formula;
[tex]C.I. = \hat{p}_1-\hat{p}_2\pm z^{*}\sqrt{\dfrac{\hat{p}_1\left (1-\hat{p}_1 \right )}{n_{1}}+\dfrac{\hat{p}_2\left (1-\hat{p}_2 \right )}{n_{2}}}[/tex]
Plugging in the values, we get;
[tex]C.I. = 0.24-0.36\pm 1.64 \times \sqrt{\dfrac{0.24\left (1-0.24 \right )}{50}+\dfrac{0.36\left (1-0.36 \right )}{50}}[/tex]
Therefore, C.I. = -0.2690 < [tex]\hat{p}_1-\hat{p}_2[/tex] < 0.02901
50% of 180 dancers said they prefer hip hop class over tap class. How many dancers prefer hip hop class?
Answer:
90
Step-by-step explanation:
50% of 180 = 90%
90% is the answer.
Please help me to come up with an equation for x.
Answer:
100=x+60
Step-by-step explanation:
Hey There!
So the angle that has a value of 100 is equal to angles x and the angle that is equal to 60
so an equation to solve for x could be
100=x+60
In an arithmetic sequence (Sn=n^2 -2n) .USE formula (Tn=Sn-Sn-1) to determine Tn
Answer:
Tn=-1
Step-by-step explanation:
Please mark as brainliest
Write 24:14:6 in its simplest form.
Answer:
12 : 7 : 3
Step-by-step explanation:
24 : 14 : 6
12 : 7 : 3
Always start with smaller number to simplify it. Since 2 is the smaller number and it simplifies 24, 14, and 6 I start with it.
24 ÷ 2 = 12
14 ÷ 2 = 7
6 ÷ 2 = 3
We would stop here since it would not further simplify, therefore our answer is 12 : 7 : 3.
Hope this helps, thank you :) !!
Create a stem-and-lead plot using the following data: 21 14 7 9 30 21 6 6 28 21 31 35 14 17 20 9 24 34 7 21 28
Step-by-step explanation:
stem and leaf
0 66779
1 447
2 0111148
3 0145
plss help me plsssssss I've been 24 hours studiyng right now soo please help me
Answer:
1)b 0.48
2) c 0.35
3) a 0.092
4) d 51.2
5) a 4
6) b0.6
7) d 3
8) a 3.33
9) a 37.125
10) c 9.1
A sports announcer states that there are 65,000 fans in the stadium. Estimate the maximum noise level. Is this estimate reasonable? Explain your reasoning.
Question:
The scatter plot shows the maximum noise level when different numbers of people are in a stadium. The linear model is given by the equation y=1.5x + 22.7 where y represents maximum noise level and x represents the number of people, in thousands, in the stadium.
A sports announcer states that there are 65,000 fans in the stadium. Estimate the maximum noise level. Is this estimate reasonable? Explain your reasoning.
Answer:
[tex]y = 97522.7[/tex]
Step-by-step explanation:
Given
[tex]y = 1.5x + 22.7[/tex]
[tex]x = 65000[/tex]
Required
Find y
Substitute 65000 for x in the given equation
[tex]y = 1.5 * 65000 + 22.7[/tex]
[tex]y = 97500 + 22.7[/tex]
[tex]y = 97522.7[/tex]
It is reasonable because as the population increases, the noise level also increases
HELPPPPPPPPPPPP PLEASEEEEEEEEEEEEEEEEEEEEEEEEE
There are five boys and three girls in a swimming pool. If two people are selected at
random with replacement, find the probability that both are girls?
Answer:
its a 3/8 chance that there are girls
Step-by-step explanation:
What is the remainder to the following polynomial division problem?
(x^2+ 6x + 5) / (x + 2)
Answer:
I think it is -3
Step-by-step explanation:
x+4-(3/x+2) is the answer I got
Michael has a toy car collection. He keeps 78 of the toy cars on his wall, which is 39% of his entire collection. What is the total number of toy cars in Michael's collection?
Answer:200
Step-by-step explanation:
39 divide by 13= 3, 78 divided by 13=6.
So 3% is 6 and 1% is 2 so 1*100= 100 and 2*100= 200.
is 5/9 x 5/5 greater than, less than, or equal to 5/9
Answer:
Equal to
Step-by-step explanation:
5/5 is another way of saying 1
so you do 5/9 times 1
and you get 5/9
A graph is shown in the picture. Which root has the multiplicity of 3?
help me I'm really swamped
{H,o,n,l,u}
Just take away all the duplicate letters and voila. funny that i did that question yesterday.
Can someone help me? I’ll reward 10 points + brainalist
Answer I got:
I got approximately 0.34906585039 in².
Step-by-step explanation:
So we know that [tex]A=\pi r^{2}[/tex]. We also know that [tex]r=\frac{1}{3}(0.3333...)[/tex] in. So, we can place this into our equation:
[tex]A=\pi\times\frac{1}{3}^{2}(A=\pi\times0.33333...^{2})[/tex]
Finally, we know that [tex]\pi\approx\frac{22}{7}[/tex].
[tex]A\approx\frac{22}{7}\times\frac{1}{3}^{2} (A=3.1415926...\times 0.3333333...^{2})[/tex]
This gave my final approx. answer of 0.34906585039 in².
[tex]\pi\frac{1}{3}^{2}\approx 0.34906585039[/tex]
All you need to do now is find the corresponding fraction to that!
hi good day plss help me plssssssssss i need yoyre help now plss
Answer:
6.c 7.c 8. b 9. a 10. a
Step-by-step explanation:
6=c as 39.10-19.56
7. 89.2-78.6
8. 8.03-5.1
9. 40.98-15.6
10.55.6-47.5
Fred buys 16 bags of tortilla chips and 28 jars of salsa dip. What is the ratio of salsa jars to bags of tortilla chips? Simplify your answer.
a guy wire runs from the top of a tree Point 42.5 ft from its base if the angle of elevation from the ground on top of the tree is 35.3 degrees find the length x of The Wire
Answer:
[tex] \cos(35.3) = 0.8141 \\ \cos(35.3) = \frac{42.5}{x} \\ 0.8141 = \frac{42.5}{x } \\ x = \frac{42.5}{0.8141} = 52.20 \: ft[/tex]
Containers A (6cm, 5cm, 4cm), B (5cm, 4cm, 3 cm) and C (3cm, 3cm, 2 cm) are three rectangular containers. At first, container A is filled with water to its brim while containers B and C are empty. Next, some water from container A is poured into containers B and C so that container B is completely full while container C is half full. Find the height of the water left in container A..
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w(n)= -n-2; Find w(10)
Answer: w(10) = -12
Step-by-step explanation:
w(n) = -n - 2; Find w(10)
w(10) = -(10) - 2
w(10) = -10 - 2
w(10) = -12
a. A bag contains 6 blue marbles, 8 black marbles, and 9 yellow marbles. If a marble is drawn from the bag, replaced, and another marble is drawn, what is the probability of drawing first a b l u e marble and then a y e l l o w marble? 0.1021 Correct b. A bag contains 8 g r e e n marbles, 9 y e l l o w marbles, and 6 b l a c k marbles. If two different marbles are drawn from the bag , what is the probability of drawing first a g r e e n marble and then a b l a c k marble?
What is the difference between a sample and a population?
Answer:
A population is the entire group that you want to draw conclusions about. A sample is the specific group that you will collect data from. The size of the sample is always less than the total size of the population
Part B: Which box-and-whisker plot displays
Mario's data?
Brainliest quick
Answer:
Step-by-step explanation:
i think it's D i have the same test today
Answer:
C cause it has to be 54 then the median is 58
Step-by-step explanation:
use the table to write a proportion.
Answer:
22
Step-by-step explanation:
A company made $785 in a ticket sale they sold 100 tickets how much did the company make per ticket if each ticket cost the same price
What is quarter of 25???
And) What is 1/2 of 16 ?
Answer:
quarter of 25 => 25/4=6.25
1/2 of 16= 8
Find the area of each figure. Round to the nearest tenth if necessary
Answer:
59.3
Step-by-step explanation:
First find the area of the the right triangles
5 * 4 / 2 = 10
Multiply it by 2 since there are 2 right triangles that are the same
10 * 2= 20
Then find the area of a semi circle
The radius is 5
π5^2 / 2= 39.27
39.27 rounded to the nearest tenth is 39.3
Add them together
20 + 39.3 = 59.3
59.3 is your answer
Dalton's dad rode his bike 1 kilometer north, 2 kilometers west,
1 kilometer south, and 2 kilometers east. Dalton rode the same path
5 times. How many kilometers farther did Dalton ride?
Answer:
24
Step-by-step explanation:
The volume length and breadh of a
cuboid are 60cm3, 5cm, 4cm then it
height is
Answer:
3cm
Step-by-step explanation:
volume of cuboid =length × base × height
so height will be
volume divided length ×base
v=60cm^3
lenght=5cm
base=4cm
h= 60 ÷(5×4)
h= 60÷20
h= 3cm
remember that cm^3 will cancel one time with 5cm and second time 4cm and leave you with cm
Find two numbers that multiply to give 48
and have a difference of 8.