Answer:
95% confidence interval for the difference between the proportions of women and men who follow a regular exercise program
(-0.1740 , 0.1672)
Step-by-step explanation:
Step(i):-
Given A survey found that 31 of 60 randomly selected women
First sample proportion
[tex]p_{1} = \frac{x_{1} }{n_{1} } = \frac{31}{60} = 0.5166[/tex]
Second sample proportion
[tex]p_{2} = \frac{x_{2} }{n_{2} } = \frac{38}{73} = 0.520[/tex]
Level of significance = 0.05
Z₀.₀₅ = 1.96
Step(ii):-
95% confidence interval for the difference between the proportions of women and men who follow a regular exercise program
[tex]((p_{1} ^{-}-p^{-} _{2} - Z_{0.05} S.E(p_{1} ^{-} - p^{-} _{2} ), (p_{1} ^{-}-p^{-} _{2} +Z_{0.05} S.E(p_{1} ^{-} - p^{-} _{2} ))[/tex]
where
[tex]Se(p_{1} - p_{2} ) = \sqrt{\frac{p_{1} (1-p_{1} )}{n_{1} }+\frac{p_{2}(1-p_{2} }{n_{2} } }[/tex]
[tex]Se(p_{1} - p_{2} ) = \sqrt{\frac{0.5166 (1-0.5166 )}{60 }+\frac{0.520(1-0.520 }{73 } } = 0.08706[/tex]
95% confidence interval for the difference between the proportions of women and men who follow a regular exercise program
[tex]((p_{1} ^{-}-p^{-} _{2} - Z_{0.05} S.E(p_{1} ^{-} - p^{-} _{2} ), (p_{1} ^{-}-p^{-} _{2} +Z_{0.05} S.E(p_{1} ^{-} - p^{-} _{2} ))[/tex]
((0.5166-0.520-1.96(0.08706) , 0.5166-0.520+1.96(0.08706))
(-0.1740 , 0.1672)
Final answer:-
95% confidence interval for the difference between the proportions of women and men who follow a regular exercise program
(-0.1740 , 0.1672)
just need answeer....
Answer:
16 degrees
Because 180-164= 16
Answer:
16
Step-by-step explanation:
It would be 180 without the line so if both sides were put together it would have to be 180 so you would do 180-164= 16
Identify the equation that has a slope of -3 and a y-intercept of -9.
y = 3x + 9
y = -9x - 3
y = 9x + 3
y = -3x - 9
Answer:
y = -3x - 9
Step-by-step explanation:
y=mx+b
^ That is the slope intercept form
M - Slope
Y - Y value
X - X value
B - Y intercept
We know that the slope is -3 and the y intercept is -9, so the equation should be:
y = -3x - 9 (The fourth answer)
Which shows the four-term polynomial and factored form of x2 + 6x – 27?
x2 + 3x – 9x – 27 = (x + 3)(x – 9)
x2 + 6x – 3x– 27 = (x + 6)(x – 3)
x2 + 9x – 3x – 27 = (x + 9)(x – 3)
x2 + 3x – 6x – 27 = (x + 3)(x – 6)
Answer:
x2 + 9x – 3x – 27 = (x + 9)(x – 3)
Step-by-step explanation:
The four-term polynomial and factored form of x2 + 6x – 27 is x^2 + 9x - 3x - 27 = (x - 3)(x + 9)
What is factorization?Factorization involves splitting a function into several factors
The polynomial is given as:
x^2 + 6x - 27
Expand the expression
x^2 + 9x - 3x - 27
Factorize the expression
x(x + 9) - 3(x + 9)
Factor out x + 9
(x - 3)(x + 9)
So, we have:
x^2 + 9x - 3x - 27 = (x - 3)(x + 9)
Hence, the four-term polynomial and factored form of x2 + 6x – 27 is x^2 + 9x - 3x - 27 = (x - 3)(x + 9)
Read more about factorization at:
https://brainly.com/question/11579257
Divide. Write the quotient in lowest terms.
1 1/4 divided by 1 2/5
Whoever answers first and accurately will mark brainliest!
Answer:
25/28
Step-by-step explanation:
convert to mixed numbers 5/4 divided by 7/5
Then keep, change, and flip to get your answer. Hope this helps. Good Luck.
Please help-
And please explain if you know how to-
Answer:
1 is 2/44=40/88
2 is 24/50=48/25
3 is 50/30=100/60
4 is 41/20.5=19/2
Step-by-step explanation:
your just multiplying or dividing by 2
pls mark braliest
Answer:
1: 880, 2: 24, 3: 30, 4: 82
Step-by-step explanation:
1: If we divide by 2 we get 20. Then multiply 44 x 2 = 880
2: 25 is half of 50. So then, we divide 48 by 2 = 24
3: 50 x 2 = 100. Then, we divide 60 by 2 becasue it is reverse; 60÷2 = 30
4: 38 divided by 19 = 2. Then we multiply 41 by 2 becasueit is reversed. 41 x 2=82
Brittany works 21.5 hours every week. If she earns $8.50 per hour, how much does she earn in one week?
Answer:
182.75
Step-by-step explanation:
21.5x8.50=182.75
Which expression can be used to find mU?
19.5
7.5
vo
Answer:
C
Step-by-step explanation:
I know because I know that how
distribute and simplify
Answer:
440/5-100
Step-by-step explanation:
20(4 2/5 - 5)
Donna rides her bike at a rate of 19/2 miles per hour how many miles can Donna travel in1/3 of an hour
Answer:
3 1/6 miles
Step-by-step explanation:
Rate(Speed )= Distance/Time
From the Question, we are to find the distance.
The formula for Distance = Rate × Time
Rate = 19/2 mile per hour
Time = 1/3 of an hour.
Distance = 19/2 miles per hour × 1/3 hour
= 19/6 miles
= 3 1/6 miles
Donna can travel 3 1/6 miles in 1/3 of an hour
how do i respond to my brother....he sent this to me
T^T
thissssssssssssssssssssssssss:
A map has a scale of 2 centimeters = 15 kilometers. If
the distance between two cities on the map is 9
centimeters, what is the actual distance between the
cities?
Answer:
67.5
Step-by-step explanation:
hi pls help ill give brainly if right
Answer: (4.5)(5)(−2) = -45
answer is the last one −45
Step-by-step explanation:
Answer:
-45
Step-by-step explanation:
4.5 times 5 is 22.5, then multiplied by -2 is -45
hope this helped :)
Alexis sells season tickets to soccer games. The season tickets cost $225.75. She makes a commission of 16% on each sale. Last month she sold 42 season tickets. What did she earn for the month?
Answer:
She earned $1517.04 last month
Step-by-step explanation:
Let us solve the question
∵ Alexis sells season tickets to soccer games
∵ The season tickets cost $225.75
∵ She makes a commission of 16% on each sale
→ Multiply 225.75 by 16% to get her commission per ticket
∵ 16% = 16 ÷ 100 = 0.16
∴ Her commission per ticket = 0.16 × 225.75
∴ Her commission per ticket = 36.12 dollars
∵ Last month she sold 42 season tickets
∴ The number of tickets = 42
→ Multiply her commission per ticket by the number of tickets
∵ Her total commission = 42 × 36.12
∴ Her total commission = 1517.04 dollars
∴ She earned $1517.04 last month
Plz help... need it quick
Answer:
id say the big triangle and the rectangle
Step-by-step explanation:
sorry if im wrong
HELP MATH ASAP!! HELP PLS! MARKING BRAINLIEST
Answer:
The inputs to this formula are:
The x-coordinate of the point: x0 = -11
The y-coordinate of the point: y0 = 4; and
The slope of the line: m = -2
The equation of this line in point-slope form will be:
y-4= -2(x+11).
Step-by-step explanation:
Hope this helps! ;)
29=6i+5
thank you!!!
Answer:
i = 4
Step-by-step explanation:
29=6i+5 (Given)
-6i = -24
i = 4
What is the decimal expansion of the following fraction? 1/8 A. 0.125 B. 0.125 C. 1.8 D. 0.18
Answer:
0.125....................
What are three arithmetic means between 23 and 67?
Answer:
um im not sure but u seem smart enough to do this
Step-by-step explanation:
There are 80 seats in the small screen.
One quarter of these seats are booked.
What is one quarter of 80?
Write an equation for each problem. Then solve.
16. Photo Plus charges $2 for each print plus
a $6 processing fee. Picture Time charges
$3 for each print plus a $4 processing fee.
For what number of prints is the price the
same at both stores?
Answer:
The price is the same at both stores for 2 prints.
Step-by-step explanation:
Equations
Let's set the variable
x = number of photo prints
Company Photo Plus charges $2 for each print and $6 for a processing fee, thus the total charges are:
PP = 6 + 2x
Company Picture Time charges $3 for each print and $4 for a processing fee, thus it charges a total of:
PT = 4 + 3x
It's required to find the number of prints that make both stores charge the same. Equating both functions:
6 + 2x = 4 + 3x
Subtracting 2x and 4:
x = 2
The price is the same at both stores for 2 prints.
Need help as fast as possible it’s urgent!!! :) ❤️
Graph the following equations using the given slope and y-intercept.
Answer:
I hope I'm right in my answer to that
This one is timed. Please help!!!!!!
Answer:
n=2
Step-by-step explanation:
Answer:
the value of n is 2 llalala
Divide:
16)160
A. 10
B. 11
C. 16
D. 26
E. 100
Answer:
10
Step-by-step explanation:
your welcome...............
3 números consecutivos es igual a 381
This is what he is asking for anybody that does not know
3 numbers nsecutive numbers equals 381
Write the new function if the parent function f(x)=12x-8 is translated 4 units down.
what is the slope intercept form of the equation 12x-4y=-20 y=3x+5 y=-3x-5 y=12x-20 y=20y-12x
Answer:
3x+y=16
x+6y=5
6x+2y=8
Step-by-step explanation:
helppppp meeeee plsssssssssssssssssssssss
Answer:
0.5 cups
Step-by-step explanation:
Alissa has scored 490 points on her science tests so far this semester To get an A she must score at least 630 points she has two tests remaining what is the minimum total amount of points she must score if she wishes to get an A
Answer:
140 points minimum
Step-by-step explanation:
Here, we want to calculate the minimum total score she must have on the remaining two tests
To get the minimum total score, we must subtract what she has scored already from her target
Mathematically, that would be;
630 - 490 = 140
____% of 80 = 68
Also could you explain the steps too?
A cyclist rides a bike 18 miles in 3 hours. If riding at a constant rate, how far can the cyclist ride in 1 hour
Answer:
6 miles per hour
Step-by-step explanation:
18 divided by 6 = 3
Answer:
6
Step-by-step explanation:
You can use VERY simple division here.
18/3 because of a constant rate of change is the answer for your one hour
of which is a simple and commonly known answer considering the fact it comes out as an even integer (6)