help me with this sum I will mark you as beautiful​

Answer:

20

Step-by-step explanation:

6:15

2:5

*4

8:20

Using statistical concepts, it is found that:

a)

The null hypothesis is: [tex]H_0: p \leq 0.07[/tex]

The alternative hypothesis is: [tex]H_0: p > 0.07[/tex]

b)

The type I error means that the researcher concluded that the proportion in this town was above 7%, while in reality it wasn't.

c)

The type II error means that the researcher concluded that the proportion in this town was not above 7%, while in reality it was.

Item a:

At the null hypothesis, we test if the proportion is the nationwide proportion of 7% of less, thus:

[tex]H_0: p \leq 0.07[/tex]

At the alternative hypothesis, we test if the proportion is larger than the nationwide proportion, that is:

[tex]H_1: p > 0.07[/tex]

Item b:

A Type I error happens when a true null hypothesis is rejected.

Thus, the type I error means that the researcher concluded that the proportion in this town was above 7%, while in reality it wasn't.

Item c:

A Type II error happens when a false null hypothesis is not-rejected.

Thus, the type II error means that the researcher concluded that the proportion in this town was not above 7%, while in reality it was.

A similar problem is given at https://brainly.com/question/24296958

Answer:

-9.75

Step-by-step explanation:

Answer:

ASA .................explains these 2 triangles are congruent to each other.

Angle UST=Angle SUV{given in the figure}

side SU= side SU{common side}

angle TUS= Angle USV{given in the figure}

Answer:

[tex]\frac{3}{18}[/tex]

Step-by-step explanation:

[tex]\frac{18-10-5}{18} \\\\=\frac{3}{18} \\[/tex]

Thw probability is [tex]\frac{3}{18}[/tex].

Answer: Carys earns $10 per hour and  earn $1 in  hour .

Step-by-step explanation:

Given: Carys calculates the total amount E, in dollars, that she earns for working h hours.

She use the equation to calculate the total amount  .

Foe h=1,  

hence, she earns $10 in one hour.

Therefore, Carys earns $10 per hour.

Let she earn $1 then put E=1 in the equation, we get

Hence, she earn $1 in  hour .

Answer:

Step-by-step explanation:

p = 2L+ 2W

length

(7-4)

3 feet

p = 2L+ 2W

146 = 2*3 + 2* w

146  = 6 + 2w

146-6 = 6-6 +2w

140 = 0+ 2w

140 = 2w

70 feet  = w

width is 70 feet

p= 2L+2W

146 = 2*a +2* 70

146 = 2a + 140

146-140 = 2a + 140-140

6 = 2a

3 feet  = a

length is 3 feet

width is 70 feet.

Answer:

Step-by-step explanation:

abcdefghijklmnopqurtuvwx hahahe y and z

the equation is made and the included values are indicated.

9514 1404 393

Answer:

  f^-1(x) = <see attachment>

Step-by-step explanation:

If we write the function as ...

  f(x) = ∛x +101/128x

Then the inverse function is the value of y when ...

  x = f(y)

This resolves to a cubic in y, whose solution can be found by use of any of the various cubic solution formulas. You can find the cubic by ...

  x = ∛y +by . . . . . . where b = 101/128

  x -by = ∛y . . . . . . . subtract by

  (x -by)³= y . . . . . . cube both sides

If we subtract the left side and expand the cube, we get ...

  b³y³ -3b²xy² +(1 +3bx²)y -x³ = 0 . . . . . . . a cubic in y

There will be one real and two complex solutions to this cubic. The real solution can be written in the form shown in the attachment. That is, ...

  y = f⁻¹(x) = [attachment expression]

A graph of it is shown in the second attachment. It is the reflection of f(x) across the line y = x, as an inverse function should be.

_____

Additional comment

The idea here is to show that it is possible to write an expression for the inverse function. It is not pretty, and it is somewhat tedious to evaluate.

Answer:

[tex](5.4 \times {10}^{4} ) \div (2 \times {10}^{3} ) \\ \\ \\ \frac{5.4 \times {10}^{4} }{2 \times {10}^{3} } = \frac{54 \times {10}^{4} }{20 \times {10}^{3} } \\ \\ \\ = 2.7 \times {10}^{1} \\ = 27[/tex]

I hope I helped you^_^

Answer:Did you ever get a answer?? I need them badly! And if i dint turn this in my whole life is ruined!! Im sorry that i don’t have answers for you

Step-by-step explanation:

Answer:

part a is 24.3 miles part b is 24 miles part c is 1.3 miles part d is 50 miles part e is 0.65 miles part f is 5 miles

Step-by-step explanation:

HOPE THIS HELPS!

Answer:

135 would be the correct answer

Step-by-step explanation:

30x45=1,350

27x45=1,215

1,350-1,215= 135

A) The strata to be used in this survey by the employer is; Type of Staff

B) Stratified Random Sampling will be preferred because the opinions of the staffs on the tipping policy may be the same within each type but differ across the different types of staffs.

Now, from the question, we see that after adding a 20% to the cost of food and beverages, that the additional revenue will be distributed equally among the kitchen and server staffs.

This means the strata here will be the type of staff because the opinions of the staffs on the tipping policy may be the within each type but differ across both types of staffs.

Read more at; https://brainly.com/question/1954758

The empirical probability is the ratio of the number of times an event occurred to the total number of trials. Hence, the empirical probability is 1.

The empirical probability is defined thus :

Hence, the empirical probability of head in the experiment :

P(Head) = 10/10 = 1

Therefore, the empirical probability of getting a head is 1.

Learn more : https://brainly.com/question/18405415

Answer:

d)

Step-by-step explanation:

100%=$5

200%=5x2=10

200-50=150%

150/200x10=7.50

Hope this helps! Thanks.

Hello there!

y=mx+b

m is the slope

b is the y-intercept

y=-3/4x+8

Hope this helps you!

~Just a joyful teen

[tex]GraceRosalia :)[/tex]

Answer:

3 hours and 45 minutes

Step-by-step explanation:

mark me a brainliest answer

Answer:

[tex]y=\frac{3}{4}x-9[/tex]

Step-by-step explanation:

We are using the general equation of a straight line, which is

y=mx+b, where y&x are the coordinates, m is the slope and b is the y intercept. We are trying to solve for b, so we can plug in these values that we know into the formula in order to find b:

[tex]-3=\frac{3}{4}(8)+b\\-3=6+b\\-3-6=b\\b=-9\\\\y=\frac{3}{4}x-9[/tex]

Answer:

3.23507462687

Step-by-step explanation:

Answer: approprate

Step-by-step explanation:

Answer: 0.66 Feet

Step-by-step explanation: There are 2.54 centimeters in an inch and there are 12 inches in a foot.

Please mark me as brainliest!

Answer:

1/10

Step-by-step explanation:

Answer

[tex] | \sqrt \frac{3v}{\pi \: h} | = r[/tex]

The given formula for the volume of cone can be written as [tex]\sqrt{\frac{2V}{\pi h} }[/tex] in terms of V and h for r.

To bring a term from one side of an equation to the other, with corresponding change in sign or by doing opposite operations is called transposing a term in an expression.

According to the given question.

We have a formula for the volume of cone

[tex]V = \frac{1}{2} \pi r^{2} h[/tex]

To solve the the above formula for r we use transpose method.

Therefore,

[tex]V = \frac{1}{2} \pi r^{2} h[/tex]

⇒ [tex]2V = \pi r^{2}h[/tex]           (multiplying by 2 both the sides)

⇒ [tex]\frac{2V}{\pi h} =r^{2}[/tex]                (dividing both the sides by πh)

⇒ [tex]r=\sqrt{\frac{2V}{\pi h} }[/tex]

Hence, the given formula for the volume of cone can be written as [tex]\sqrt{\frac{2V}{\pi h} }[/tex] in terms of V and h for r.

Find out more information about transpose method here:

https://brainly.com/question/2263930

#SPJ3

Is 3 times the value

I know this because the number 8 is moved to the left 3 times

Answer:

e, event of getting a green apple

p(e) = no. of green apples/total no. of apples

= 4/(4+3)=4/7

4/7 is probability of getting a green Apple

Step-by-step explanation:

hope this helps