Janice and her cousin Linda are a little competitive about the relative merits of their home towns. One contest they had was to determine who had more rainy days. They found weather records on the internet and each of them randomly selected 60 days from the past 5 years. Janice found that there had been measurable rainfall on 17 of the 60 days she selected for Asheville, and Linda found that there had been measurable rainfall on 12 of the 60 days she selected for Lincoln. They intend to perform a test of significance on their data, using the hypotheses When calculating the test statistic, what expression would they use to estimate the standard deviation of the sampling distribution of the difference in proportions,

Answers

Answer 1

Answer:

Following are the equation to this question:

Step-by-step explanation:

[tex]\to \frac{\sqrt{(.24)(.76)}}{60} + \frac{(.24)(.76)}{60}\\\\\to \frac{\sqrt{0.1824}}{60} + \frac{0.1824}{60}\\\\\to \frac{0.42708313}{60} + \frac{0.1824}{60}\\\\\to \frac{0.42708313+0.1824}{60} \\\\\to \frac{0.60948313}{60} \\\\\to 0.0101580522[/tex]


Related Questions

What restrictions are there on the range of the function H(w) below?
H(w)
(5.0,20.00)
A. H(w) s 1
B. H(w) > 0
C. H(w) < 0
D. There are no restrictions on the range of H(w).

Answers

Answer:

There are no restrictions on the range of H(w).

The restrictions that are there on the range of the function H(w) is:

Option B: H(w) > 0

How to Identify the Function restrictions?

The function, named H(w) is defined by a graph that is a descendant line, that belongs only to the first quadrant.

As w approaches to 0 by the right, the function approaches to + infinity. It never touches the vetical axis, decreases and approaches to 0 when w approaches to infinity. The graph never touches the horizontal - axis.

Then, the function is defined only for positive values of w and H(w) is always positive.

Then, the answer is H(w) > 0, this is the option B

Read more about https://brainly.com/question/1415456 at:

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Write a quadratic function in vertex form whose graph has the vertex (1,8) and passes through the point (3,12)​

Answers

vertex form: y=(x-1)^2+8

PLS, I'm begging for help, il give the brainiest to who gives me the right answer! THIS IS 30 POINTS
Question: pentagon STUVW is similar to S' T' U' V' W'. angle U=56 degrees, angle U' = 3x-16, and Angle T'=x+46. ST=57, UV=63, S' T'=19 and U' V' =y+4
a. Find x
b. find angle T'
c. Find y
you have to do, a, b, and c

Answers

Answer:

Similarity doesn't changes angle measures

∠U = 56°, ∠U' = 3x - 16∠U = ∠U'

a) 3x - 16 = 56 ⇒ 3x = 72 ⇒ x = 24°

b) ∠T = x + 46 = 24 + 46 = 70°

c) Scale factor:

k = S'T'/ST = 19/57 = 1/3

Find y using known sides and scale factor:

U'V'/UV = 1/3(y + 4)/63 = 1/3y + 4 = 21y = 21 - 4y = 17

The radius of a quarter circle is 3 millimeters. What is the quarter circle's area?
r=3 mm

Answers

Answer:

28.3mm

Step-by-step explanation:

3(3)=9(pi)= 28.274...

Answer: 9[tex]\pi[/tex], or more specifically, 28.26, or even more specifically, 28.2643.

Explanation:

To find the area of a circle, you need to do r squared x pi. Since pi repeats randomly infinitely, we are going to simplify it to 3.14. 3 squared or 3 x 3 equals 9. 9 x 3.14 = 28.26. Therefore, the area of the quarter is 28.26. If you want to find the answer without simplifying pi, it is approximately 28.2643. You can also write it as 9[tex]\pi[/tex].

Hope this helps! If it did, please give brainliest! It would help a lot! Thanks! :D

Sophia cut a piece of wood that measured 10.2inches but she was supposed to cut 16 inches what is the percent error

Answers

Answer: 35.80 %

Step-by-step explanation:

Given

Sophia mistakenly cut 10.2 inches

The actual cut should be 16 inches

[tex]\Rightarrow \% \text{error}=\dfrac{\text{Actual dimension-Faulty dimension}}{\text{Actual dimension}}\times 100\\\\\Rightarrow \% \text{error}=\dfrac{16-10.2}{16.2}\times 100=35.80\%[/tex]

100 POINTS!!!! Pleas answer ALL of these questions and SHOW YOUR WORK. If you don't answer all questions fully your answer will be reported : /
Please try your best! Thank you!!!!

Answers

Answer:

13.

p=$2000

t=5year

rate=2.5%

compound amount =p(1+r/100)^t

=2000(1+2.5/100)^5=$2262.8 is total balance

What is the factored expression

Answers

Answer:

i think its A.

Step-by-step explanation:

the answer is (9x+4)^2

Elena bowls two games on Saturday. Her score in the second game is 30 more than ¾ of her score the first game. Elena's total score for the two games is 478. Write and solve an equation to demonstrate the points scored in her second game.

Answers

Answer:

222 = score in 2nd game

Step-by-step explanation:

Let x = score in 1st game

3/4(x) + 30 = score in 2nd game

x + 3/4(x) + 30 = 478         Multiply thru by 4 to eliminate the fraction

4x + 3x + 120 = 1912

7x + 120 = 1912

7x = 1792

x = 256

3/4(x) + 30 = 3/4(256) + 30

= 192 + 30

222 = score in 2nd game

Check:  222 + 256 = 478

if The quotient of three times a number and 4 is no more than 13.

Answers

Answer:

3x + 4 ≤ 13

Step-by-step explanation:

Are the ratios 12/30 and 20/50 equivalent

Answers

Yes, it is true. Divide them and you get 12/30=.4 and 20/50=.4.

CAN SOMEONE HELP MEEE PLEASEEEE

Answers

Answer:Third Person Objective

Thomas earned $38.25 for cleaning the garage. Hewas paid $4.25 per hour. How many hours did it take him to clean the garage? a. 7 hours b. 8 hours c. 9 hours d. 10 hours.

Answers

Step-by-step explanation:

$38.25/$4.25 ×1hr

9hrs

Plz help


what are the slope and y-intercept of the linear function that is represented by the graph
A- the slope is -4/3 and the y-intercept is 3
B- the slope is -4/3 and the y-intercept is 4
C- the slope is -3/4 and the y-intercept is 3
D- the slope is -3/4and the y-intercept is 4

plz help this is a timed test​

Answers

Answer:

The slope is -3/4 because it rises goes down 3 and runs 4. the Y-intercept or where the line meets the y line is 3

Step-by-step explanation:

Forest rangers found that a 20 foot tree casts a 10 foot shadow. How tall is the
neighboring tree that casts an 8 foot shadow?

Answers

20ft. 10ft
x ft. 8ft
X=20•8/10
X=160/10
X=16
The tree is 16 ft tall

1) What equation is used in the function table below?

Answers

Answer:

y = -3x

Step-by-step explanation:

it’s y=-3x because it’s dividing by 3 each time

simplify 2(5+3x)+(x+10)

Answers

20+7x

just use the distributive property on 2(5+3x) then add x and 10

7x+20 basically distribute both(for the one without its 1) then multiply them both

mark brainliest

Find the area of the figure below

Answers

Answer:

26.0 in

Step-by-step explanation:

area = half base ×height

base=13÷2

=6.5

height=4

6.5×4

=26

Can someone help me find this

Answers

Answer:

it should be 90 degrees

Step-by-step explanation:

...........................

En una estación de esquí la temperatura más alta ha sido de -2°C, y la
más baja, de -23°C. ¿Cuál ha sido la diferencia de temperatura?

Answers

21 degrees C ????????????

Which diagonal (IE or KT) is the line of symmetry for kite KITE below? Explain.

Answers

Answer:

Step-by-step explanation:

KT because triangles KIT and KET are  congruent ( mirror images).

Brian invests £1800 into his bank account.
He receives 5% per year simp interest.
How much will Brian have after 6 years?

Answers

Answer:

≈£2412

Step-by-step explanation:

1800(0.05)^6

≈£2412

can anyone help this is confusing??

Answers

Answer:

volume is just defined as multplying all the sides and is alot different from surface area, so it would be 1/5x1/5x/14 which is 1/100

Step-by-step explanation:

7 t-shirts and a hat costs £67.00
5 t-shirts and a hat costs £49.00.
How much does a t-shirt cost?
How much does a hat cost?

Answers

£67.00 / 7= £9.57that’s how much cost the hat
£67.00-£9.57= £57.43
£57.43/7= £8.20 per T-shirt





2. Find the value of x to the nearest degree.
A) 68
B) 22
C) 24
D) 66

Answers

Answer:

it would be 66 I hope this helps.

373 students went on a field trip. Seven buses were filled and 16 students traveled in cars. How many
students were in each bus (b)? The variable should always go in the first term.

Answers

Answer: 35

Step-by-step explanation:

Answer:

There were 54 children in each bus.

Step-by-step explanation:

I'm losing all my points cause i'm so du.mbbbbbbbb

Answers

Answer:

-1/3

Step-by-step explanation:

-1/2 is the answer and try to don't lose points next time.

What is the y-intercept of line x = -8?

Answers

Answer:

There is no y-intercept.

Step-by-step explanation:

x = -8 has an undefined slope which means that it will never have a y-intercept unless it is x = 0.

Help please ! ASAP !!!!!!!

Answers

Answer: (-3, -8) (0, 1) (-3, -8)

Step-by-step explanation:

So in the equation, y=3x+1, 1 is the y intercept (which is where the line goes through the y intercept, so graph a point at 0,1 (that also fills out the middle of the chart. 3 is the slope of the equation so then you have to use the slope and you will find 2, 7 as a point and -3, -8 as a point.

Hope that helps! :)


Please hurry! 8. Write in your own words what happens to the
coordinates in a figure when the following occur:
I don’t know how to explain it

Answers


X-Axis
When a figure flips over the X-axis, the X coordinate stays the same while the Y-coordinate’s sign is flipped.

Y- axis

When a figure is flipped over the Y- axis the Y coordinate stays the same while the X axis coordinate’s sign is flipped

Example- (x,y)
X axis flipped
(2,5) —> (2,-5)

Y axis flipped
(3,5) —-> (-3,5)

there are 90 chairs arranged for people to watch a band concert. if 75 chairs have people in them during the concert, what percentage of the chairs are fiilled​

Answers

Answer: 83.3%

Step-by-step explanation:

Simply you want to divide 75 by 90 and you will get 83.3%

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