A random sample of size 32 is selected from population X, and a random sample of size 43 is selected from population Y. A 90 percent confidence interval to estimate the difference in means is given as (−1.25,0.87)
.
Consider a change in the sample sizes such that a random sample of size 52 is selected from population X and a random sample of size 63 is selected from population Y. When all other things remain the same, what effect would such a change have on the interval?
Answer:
The level of confidence will increase.
Step-by-step explanation:
Could be wrong
The change in the sample size will lead to a decrease in the width of the interval.
What is a sample size?A sample size simply means the number of subjects that are taken from the population for research.
In this case, increasing the sample size will decrease the standard error and therefore, the width of the confidence interval will reduce.
Therefore, as the sample size increases, the interval reduces.
Learn more about sample size on:
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HELPP plz I need the answer with step by step don't send a file plz
Answer:
13
Step-by-step explanation:
5^2 + 12^2 = Y
Sqrt Y = X
4. How many ways can you shuffle 7 songs in a playlist?
A. 832,543
B. 720
C. 5040
D.49
Answer:
5040
Step-by-step explanation:
7×6×5×4×3×2×1=5040
We have that the the amount of ways you can ways can you shuffle 7 songs in a playlist is mathematically given as
P=5040
FactorialQuestion Parameters:
How many ways can you shuffle 7 songs in a playlist?
Generally the equation for the ways to play the songs are mathematically given as
Since the songs are ,therefore it will have seven factorials
P=7*6*5*4*3*2*1
P=5040
Therefore, the amount of ways you can ways can you shuffle 7 songs in a playlist is
P=5040
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Suppose that an individual has a body fat percentage of 19.3% and weighs 187 pounds. How many pounds of her weight is made up of fat? Round your answer
to the nearest tenth.
Answer:
The individual has 36.09 pounds of body fat.
Step-by-step explanation:
Given that an individual has a body fat percentage of 19.3% and weighs 187 pounds, to determine how many pounds of her weight is made up of fat the following calculation must be performed:
(187 x 19.3) / 100 = X
3.609.1 / 100 = X
36.091 = X
Therefore, the individual has 36.09 pounds of body fat.
Please help, I will give brainliest to whoever helps!
Answer:
H
Step-by-step explanation:
I'm legit smart bro quit playing
Answer:
C
Step-by-step explanation:
x - 1 = 0
x = 1
2x + 5 = 0
2x = - 5
x = - 5/2
Option C is the correct answer
How do I find the point of intersection?
Answer:
(-1 3/5, 2 3/5)
Step-by-step explanation:
Red Line:
m = 3-(-1)/-2-2 = 4/-4 = -1
b = 1
equation: y = -x + 1
Blue Line:
m = 5-1/2-(-4) = 4/6 = 2/3
find 'b':
5 = 2(2/3) + b
15/3 = 4/3 + b
b = 11/3
equation: y = 2/3x + 11/3
Find Point of Intersection:
-x + 1 = 2/3x + 11/3
multiply each side by 3 to get:
-3x + 3 = 2x + 11
-5x = 8
x = -8/5
find 'y':
y = -(-8/5) + 1
y = 8/5 + 1 = 13/5
y = 2 3/5
sum of 20 and 8 minus the product of 3 and 5
Answer and Step-by-step explanation:
The sum of 20 and 8 would look like
20 + 8
Then we have to subtract the product of 3 and 5 from the sum of 20 and 8.
(20 + 8) - 3(5)
^That is the expression^
The answer, when you evaluate the expression, is:
28 - 15 = 13
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165 Students went on a filed trip. three buses were filled and 21 students traveled in cars. how many students were in each bus?
Answer:
48 students in each bus
Step-by-step explanation:
Chase is trying to pick out an outfit for the first day of school. He can choose from 4
pairs of pants, 7 t-shirts, 5 sweaters or hoodies, and 2 pairs of shoes. How many
different outfits does Chase have to choose from?
Answer: 88
Step-by-step explanation:
Answer:
4 or 7
Step-by-step explanation:
chase has a long situation
PLEASE HELP! I don’t understand
Answer:
(-1,0) and (5,0)
Step-by-step explanation:
The roots are the points where the y-value is 0 and the point lies exactly on the x-axis.
(blank,0)
In this parabola, the points that are exactly on the x-axis is (-1,0) and (5,0)
A school found that the number of students buying lunch from the cafeteria had declined. The school wants to revise its current lunch menu.
They asked parents and students to suggest new meals.
Which method of selecting new meals will produce an unbiased result?
all the suggested meals will be shuffled into one stack and every 10th suggestion will be used
need help, I'm stuck on this
Answer:
The answer is 729/64.
Step-by-step explanation:
I would first simplify the equation.
In the denominator, you can get rid of b^0 because that just equals 1.
For the a's in the numerator and denominator, you have to flip them so the exponents can be positive.
Equation: [tex](\frac{3ab^2}{2a^3})^2[/tex]
Now, you can subtract a and a^3. This would be 1/a^2.
Equation: [tex](\frac{3b^2}{2a^2})^2[/tex]
Now, you can square the whole equation.
Equation: [tex]\frac{9b^4}{4a^4}[/tex]
This is the simplified equation. Now you can plug in -2 and -3.
Equation: [tex]\frac{9(-3)^4}{4(-2)^4}[/tex]
Equation: [tex]\frac{9(81)}{4(16)}[/tex]
Equation: 729/64
Rewrite the following equation in standard form. -5/6x - 2/5y = 10/3
Answer:
the answer would be 25x+12y= -100
Part 1: How many phone numbers can be made if all the digits (that is, 10 digits) need
to be filled in and any single digit number (0-9) can be used for any digit?
Part 2: How many phone numbers can be made if the first digit must be 1, the second digit must be a number in the range 3-5, the third digit must be a number in the range
(6-9), and the last seven digits can be any single digit number 0-9?
PLZ HELP ASAP WOULD GREATLY APPRECIATE IF U R HERE TO NOT HELP DON'T BOTHER OR DON'T PUT A LINK THAT LEADS TO NOTHING THANK YOU!
Answer:
100
Step-by-step explanation:
Just do 10 times 10
Can you give the picture with the problem? Im confused on what the problem is because i dont see an equation set.
An algebraic expression that contains three terms is called?
Monomial
Binomial
Trinomial
None of these
Answer:
Step-by-step explanation:
If the expression contains 3 terms none of which can combine with any other, the the expression is a Trinomial. An example of such a thing is f(x) = x^2 + 2x + 1.
The x cannot combine with the x^2 nor with the 1. The same can be said for the x^2 and the 1.
Answer:
Trinomial
Step-by-step explanation:
I got it Correct
Plzzzz help!!!!!!!!!!
Answer:
Add them then divide that my number of numbers there is...simple.
Step-by-step explanation:
A bicyclist needs to pass two check points before completing a race. The matrix equation that represents the distance, in miles, from the starting point to checkpoint 1, y represents the distance from checkpoint 1 to checkpoint 2, and z represents the distance from checkpoint 2 to the finish line.
Answer:
A.
i believe you are right
hamid has gained weight.
he now weighs 88kg which is 10% higher than his normal weight
what is hamids normal weight?
Answer:
8.8 kilograms
Step-by-step explanation:
Answer: 83.6 Kg
Step-by-step explanation:
x * 0.1 = y ---> x = y/0.1
88 - y = x
y/0.1 = 88 - y
2y = 88 * 0.1
y = 4.4
88 - 4.4 = 83.6Kg
Select Transform to change the drawing of the figure. What is the area of the front of the prism? Area = cm2 2 cm 3 cm 6 cm Transform
Answer:12 cm2
Step-by-step explanation:I’m smart
Answer:
it was 12
Step-by-step explanation:
I did the quiz, hope this helps have a good day.
(*˘︶˘*).｡*♡
im having trouble. can someone please help me with this !
Answer:
28
Step-by-step explanation:
Answer:
x= 33
Step-by-step explanation:
The sum of the angles on a straight line is 180°. This is abbreviated as 'adj. ∠s on a str. line'.
104° +x° +(x +10)°= 180°
2x° +114°= 180°
2x°= 180° -114°
2x°= 66°
Divide both sides by 2:
x°= 66° ÷2
x°= 33°
x= 33
Someone help and plz make sure it’s right will give brainiest if it is :)
Answer:
67....................
Can someone Help please
Answer:
Answer:17 (I think)
Because if you look at the problem below Y u can see the patter 5+3=8 8+3=11 contiously adding 3 you get 17
100 points / please help
A baker has three different recipes. Recipe A uses 3 cups of flour to make 12 rolls. Recipe B uses 5 cups of flour to make 24 rolls. Recipe C uses 11 cups of flour to make 48 rolls. Which recipe uses the most cups of flour per roll?
a) Recipe A
b) Recipe B
c) Recipe C
d) The ratios are all proportional
Answer:
Recipe A
Step-by-step explanation:
Hope this helped!!!
Answer:
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Recipe A:Cups of flour used = 3
Rolls made = 12
Cups of flour per roll
[tex] = \frac{3}{12} \\ = \frac{1}{4} \\ = 0.25[/tex]
Recipe B:Cups of flour used = 5
Rolls made = 24
Cups of flour per roll
[tex] \frac{5}{24} \\ = 0.20[/tex]
Recipe C:Cups of flour used = 11
Rolls made = 48
Cups of flour per roll
[tex] \frac{11}{48} \\ = 0.22[/tex]
Now compare Recipe A, B & C.[tex]0.25 > 0.22 > 0.20[/tex]
Recipe A > Recipe C > Recipe B.
✏ So, Recipe A used the most cups of flour per roll (option a).
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[tex] \huge\blue{ \mid{ \underline{ \overline{ \tt ꧁❣ RainbowSalt2222 ࿐ }} \mid}}[/tex]
I need help. I'm confused on this question
Suppose you are making a sail in the shape of a right triangle for a sailboat. The length of the longest side of the sail is 65 ft. The sail is to be 63 ft high. What is the length, in feet, of the third side of the sail?
Answer:
in right angled triangle ABC
hypotenuse [h]=65ft
base[b]=xft
height[p]=63ft
by using Pythagoras law
h²=p²+b²
65²=63²+x²
x²=65²-63²
x=√256
x=16feet
so the third side of the sail is 16ft.
Base:-
√H²-P²√65²-63²√16²16fthelp me pleaseeeeeeeee
Answer:
x = 25 degrees
Step-by-step explanation:
the angle for a straight line is 180, so add 125 and 30 together, which gets 155. then subtract 155 from 180 which gets 25 degrees as x
What is the difference between an inscribed angle and a central angle?
Answer/Step-by-step explanation:
An inscribed angle is an angle that is formed by two chords in a circle. The vertex of an inscribed angle is at any point on the circumference of the circle.
On the other hand, a central angle is an angle that is formed by two radii of a circle. The vertex of a central angle is at the centerbof a circle.
Thus, from the diagram attached below, <EFG is an inscribed angle while <EOG is the central angle of the circle O.
Inscribed angle = ½ of the central angle.
3 cm
20 cm
4 cm
Find the volume of the rectangular prism.
[?] cm
match the terms to the definition
Answer
1,3,4,2
Step-by-step explanation:
kelly buys a shirt for $14 dollars and pays the store clerk $20 how much change will kelly get back
Answer:
6
Step-by-step explanation:
6 maybe