Answers
Answer
number
4.D
5.B
6.C
7.BHopes this helpRelated Questions
A researcher wants to see if a kelp extract helps prevent frost damage on tomato plants. One hundred tomato plants in individual containers are randomly assigned to two different groups. Plants in both groups are treated identically, except that the plants in group 1 are sprayed weekly with a kelp extract, while the plants in group 2 are not. After the first frost, 12 of the 50 plants in group 1 exhibited damage and 18 of the 50 plants in group 2 showed damage. Let p1 be the actual proportion of all tomato plants of this variety that would experience damage under the kelp treatment, and let p2 be the actual proportion of all tomato plants of this variety that would experience damage under the no-kelp treatment.
Required:
Construct and interpret a 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.
Answers
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
1. Andre earns $4000 a month at his new job. In order to track his spending and saving, he created a monthly
budget. Andre divided his income into five categories and created the following circle graph to represent the
budget he created for himself. Use this circle graph to answer the following questions.
Monthly Budget
Other, 22%
Rent
33%
Savings
25%
Groceries,
12%
Utilitites
8%
(a) Andre is planning on renting a new apartment, but he wants to stay within his budget on and
utilities. Andre is looking at two apartments: Apartment 1 and Apartment 2. Apartment 1 costs $1100
per month, plus $250 for utilities. Apartment 2 costs $1350 per month, plus $100 for utilities. Which
apartment should Andre choose?
(b) Explain your reasoning in a minimum of 3 sentences or more.
Answer:
Answers
Answer:
If Andre plans on staying within his budget, he should choose Apartment 1.
Step-by-step explanation:
Apartment 1: $1100 rent + $250 utilities = $1350 Total Monthly
Apartment 2: $1350 rent + $100 utilities = $1450 Total Monthly
Andre can spend up to $1320 on rent & $320 on utilities, totaling at $1640. In this situation, Andre needs to save as much money as possible. Either on one of these apartments stay below the budget for monthly cost, but Apartment 2's rent goes $30 higher than his budget allows. In the end, this makes apartment 1 the best option for rent, utilities, and ultimate cost.
If Andre plans on staying within his budget, he should choose Apartment 1.
Andre would choose apartment 1 because its cost of rent and utilities is less than the budgeted costs of rent and utilities
A pie chart is shows information in a circle. The sum of angles in a pie chart is 360 degrees and the sum of percentages is 100.
The first step is to determine the total amount Andre can spend on rent according to the budget.
Total amount of budget = percentage of budget to be spent on rent x total income
33% x $4000
= 0.33 x $4000 = $1320
The second step is to determine the total amount of the budget that would be spent on utilities
Total amount to be spent on utilities = percentage of utilities x total income
8% x $4000
0.08 x $4000 = $320
The cost of rent and utilities of apartment 1 is less than the cost of the budgeted cost. While the cost of rent of apartment 2 is greater than the budgeted rent and its utilities is less than the and the budget for utilities. This makes Apartment 1 more appropriate.
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Use long hand division to determine if (x-1) is a factor of 4x^4 + 7x^2 - 5x + 1
Answers
Answer:
[tex] \bold{quotient } = {4x}^{3} + {4x}^{2} + 13x + 8 \\ \bold {remainder} = 9[/tex]
Step-by-step explanation:
See the attached image.
Can you help me please here is the image
Answers
Answer:
its c
i think
Step-by-step explanation:
I hope you get it right :)
Have a good day
find the missing height.
Answers
Answer:
h = 12 units
Step-by-step explanation:
Area of parallelogram = 84 square units
Height = area ÷ base
h = 84 ÷ 6
h = 12 units
please help me with this :)
Answers
Answer:
A
Step-by-step explanation:
Answer:
just use photo math on your phone or tablet bro
Step-by-step explanation:
download it on the app store
Simplify. Write the answer as a decimal.
Answers
Answer:
what are we simplifying
What is the highest common factor of 72 and 96
Answers
A theory predicts that the mean age of stars within a particular type of star cluster is 3.3 billion years, with a standard deviation of .4 billion years. (Their ages are approximately normally distributed.) You think the mean age is actually greater, and that this would lend support to an alternative theory about how the clusters were formed. You use a computer to randomly select the coordinates of 50 stars from the catalog of known stars of the type you're studying and you estimate their ages. You find that the mean age of stars in your sample is 3.4 billion years.
Answers
Answer:
The answer to this question can be defined as follows:
Step-by-step explanation:
Please find the complete question in the attached file.
Lets [tex]\mu[/tex] in trillions of years be the maximum likelihood age of galaxies in a certain type of star cluster.
Calculating the Hypotheses:
Null hypothesis value:[tex]H_o : \mu = 3.3[/tex]
Alternative hypothesis value: [tex]H_A : \mu > 3.3[/tex]
A box of corn flakes has a square base with sides that measure 7 centimeters in length and the height of the box is 20 centimeters. If V represents the volume of the box, what is the maximum volume of corn flakes this box can hold?
A. 900
B. 925
C. 950
D. 980
Answers
Answer:B
Step-by-step explanation:
Answer:
its B
Step-by-step explanation:
If you jog 8 times around a track that is 600 meters long, how many kilometers have you covered?
Answers
Answer:
0.6 km
Step-by-step explanation:
If If you jog 8 times around a track that is 600 meters long, then 4.8 kilometers you have covered
What is Unit of Measurement?A Unit of measure is the actual unit in which the associated values are measured.
Given,
If you jog 8 times around a track that is 600 meters long,
We need to find how many kilometers you have covered.
8 times around a track that is 600
It means we have to multiply eight with six hundred.
8×600
=4800
We know that 1 km is 1000 m
So divide 4800 by 1000 to find in kilometers
4800/1000=4.8km
Hence If you jog 8 times around a track that is 600 meters long, Then 4.8 Kilometers you have covered.
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If a=-3, then - (a4) =
A -12
B 81
C-81
D 12
Answers
Calculate cose to two decimal places.
Answers
Answer: its b
Step-by-step explanation:
Bill is in a class of 23 girls and 27 boys. 40% of the students in the class take the bus to school. How many students take the bus to school?
A. 15
B. 20
C. 30
D. 35
Answers
Answer: 20 students
Step-by-step explanation: 20 students who take the bus to school. Therefore thirty students do not take the bus to school.
How many miles are in 3227 feet? (1 foot=5280 miles) Round to the nearest tenth.
Answers
0.6111742 Miles
Please Mark Brainliest!
Answer:
.6
Step-by-step explanation:
will technically there is 0.6111742 in a 3227 because you divide 3227 by 5280
the sum of three consecutive integers is -51 what is the value of the smallest number
Answers
Answer: Let's say the first number is x, the next one is x+1, and so on
Step-by-step explanation:
x + (x + 1) + (x + 2) = -51
x + x + 1 + x + 2 = -51
3x + 3 = -51
3x = -54
x = -18
plz help me with this
Answers
Answer:
11 shots
Step-by-step explanation:
60% of 18 = 10.8
10.8 rounded = 11
Why we did this:
Owen made 60% of the shots he made, and he made 18 shots in total. Therefore, we would take 60% of 18.
The answer we get is 10.8, but we can't have a part of a shot. That wouldn't make sense. Therefore, we have to round up to 11 shots.
Solve for x. Round your answer to the nearest tenth
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[tex] {x}^{2} = {24}^{2} - {23}^{2} \\ \\ {x}^{2} = 576 - 529 \\ \\ {x}^{2} = 47 \\ \\ x = \sqrt{47} [/tex]
Find the missing side. Round your answer to the nearest tenth.
Answers
Answer:
x= 23.0 (nearest tenth)
Step-by-step explanation:
Please see the attached picture for the full solution.
What are the x-intercepts of the function f(x) = -2x2 – 3x + 20?
OAC) and (4,0)
O B.(-2, 0) and (5,0)
O C.(-4,
* (-4, 0) and (0)
O D.(-5,0) and (2.0)
Answers
Answer:
the interception of the function will be equals -2x+5 And x-4
I guess
Find the value of x.
(13x+12)
129
X=
PLSS HELP
Answers
Answer:
The value of x would equal 9
Step-by-step explanation:
129 - 12 = 117
117/13 = 9
After completing this activity, what is your initial explanation of how the populations of predators and prey are related?
Answers
Step-by-step explanation:
prey and predators depends in each other .in the absence of one another is useless or meaning less. predators is responsible for population of prey.if less predators more prey and more predators means less prey.
Answer:
they both eat food
Step-by-step explanation:
Besides using the proper formula, what must you be cautious of when calculating the area of geometric
figures? Why?
Answers
Answer:
Some units are inches and some are feet. In that case, you would need to convert in order for the equation to be solved.
Step-by-step explanation:
I got 100% on edgen
Cautious of when calculating the area of geometric figures is different unit.
What are units?A measurement unit is a standard quantity used to express a physical quantity.
The main caution while calculating the geometric figures is units.
Sometimes units are inches and some are feet.
In this case, we need to convert in order to get the correct calculation because different measurements can cause error in finding the solution.
Learn more about units here:
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Kiran is flying a kite. He gets tired, so he stakes the kite into the ground. The kite is on a string that is 12 feet long and makes a 45 degree angle with the ground.
How high is the kite?
Answers
Answer:
the Hight of kite is =12×sin45
therefore,8.5 feet
Solve for x
x^2+ 6x + 9 = 12
Answers
Answer:
x=−3+2√3 or x=−3−2√3
Step-by-step explanation:
A piano turner charges $63 for 1.5 hours of work. Which proportion can be used to find x, the number of dollars the piano turner charges for 4 hours of work?
Answers
$x. 4 hrs
63/x=1.5/4
x=63•4/1.5
x=252/1.5
x=168$
Trevor was paid $960 last week for working 40hours. What is Trevor's hourly pay rate before taxes?
Answers
Answer:
He gets paid 24 dollars an hour 960/40=24
Corresponding Angles are congruent.
Which angle corresponds with 4 3?
em
41 42
43 44
«[?]
448
56
Answers
Answer:it’s 5 trust
Step-by-step explanation:
1. Find the measure of the given angle.
156°
L
N
?
M
124
Answers
Answer:
40°
Step-by-step explanation:
360-156-124=80
80/2=40
Someone pleaseee help it should be easy!!!!
Answers
Answer:
5
Step-by-step explanation:
First,let find the area of AMY. It is given that
Am=5
MY=7
AY=3
We can add up those numbers to find the perimeter.
5+7+3=15.
2. Since AMY and MEG are similar shapes, there side lengths are proportional, and their perimeter is also proportional.
The only transformation that can accomplish that is a dilation.
MEG is a dilation of AMY by 1/3. so that means MEG is 3 times smaller than AMY.
We would just divide 3 by the perimeter of AMY to find MEG.
[tex] \frac{15}{3} = 5[/tex]
