Assume that you have a sample of n1=9​, with the sample mean X1=46​, and a sample standard deviation of S1=4, and you have an independent sample of n2=12 from another population with a sample mean of X2=31 and the sample standard deviation S2=5. Complete parts​ (a) through​ (d) below. a. What is the value of the​ pooled-variance tSTAT test statistic for testing H0: μ1=μ2​? tSTAT=nothing ​(Round to two decimal places as​ needed.) b. In finding the critical​ value, how many degrees of freedom are​ there? nothing degrees of freedom ​(Simplify your​ answer.) c. Using a significance level of α=0.1​, what is the critical value for a​ one-tail test of the hypothesis H0: μ1≤ μ2 against the alternative H1: μ1>μ2? The critical value is nothing. ​(Round to two decimal places as​ needed.) d. What is your statistical​ decision? A. Reject H0 because the computed tSTAT test statistic is greater than the​ upper-tail critical value. B. Reject H0 because the computed tSTAT test statistic is less than the​ upper-tail critical value. C. Do not reject H0 because the computed tSTAT test statistic is less than the​ upper-tail critical value. D. Do not reject H0 because the computed tSTAT test statistic is greater than the​ upper-tail critical value.

Answer:

6x+35

Step-by-step explanation:

Answer:

l ×b length ×breadth or h×b height ×breadth only this much or if you have other formula plz send me plz and what your name

Answer:

To prove triangles are congruent (equal) you must show that corresponding sides have the same measure as well as corresponding angles having the same number of degrees.

Step-by-step explanation:

Answer: You need to show that the measure of angle G is equal to the measure of angle T.

Answer:

[tex]\displaystyle s=5,000p-50,000[/tex]

Step-by-step explanation:

Linear Model

The supply of cartons of oil in January 2021 is predicted to reach 50,000 cartons for Tawfiq Trading Company with the carton selling for $20.

If we call s the supply of cartons and p the price, the ordered pair (p,s) for this condition is (20 ; 50,000).

It's predicted that the supply will fall by 20,000 if the price falls by 20%. The new supply will be 50,000-20,000=30,000 and the new price will be 0.8*$20=$16. This gives us the second point (16 ; 30,000)

The equation of a line passing through points (p1,s1) and (p2,s2) can be found as follows:

[tex]\displaystyle s-s_1=\frac{s_2-s_1}{p_2-p_1}(p-p_1)[/tex]

Substituting the given points:

[tex]\displaystyle s-50,000=\frac{30,000-50,000}{16-20}(p-20)[/tex]

Calculating:

[tex]\displaystyle s-50,000=\frac{-20,000}{-4}(p-20)[/tex]

[tex]\displaystyle s-50,000=5000(p-20)[/tex]

Operating and simplifying:

[tex]\displaystyle s-50,000=5,000p-100,000[/tex]

[tex]\mathbf{\displaystyle s=5,000p-50,000}[/tex]

Answer:

A is false

Step-by-step explanation:

A triangle can be drawn with exactly 1 acute angle. FALSE

A triangle can be drawn with exactly one right angle. TRUE

A triangle can be drawn with more than one acute angle. TRUE

A triangle can be drawn with exactly one obtuse angle. TRUE

Answer:

c) 75

Step-by-step explanation:

180-155 = 25

80+25+x=180

x = 75

Step-by-step explanation:

By Exterior Angle Theorem,

x = 155° - 80° = 75° (C).

Answer:

Step-by-step explanation:

Let J(t) represent Juan's equation and A(t) represent Aubree's equation. If Juan starts this venture on page 5, even if he didn't read any more days at all, when t = 0, he would still have read those 5 pages. Because he reads 14 pages per day, then he reads 14t and t represents the number of days gone by. His equation then is

J(t) = 14t + 5

Likewise, for Aubree, even if she decides not to read any more past the original 25 pages she started with, she would still have read those 25 pages. Her equation then would be

A(t) = 10t + 25

We need to know how many days will go by before they are both on the same page, so set the equations equal to each other and solve for t:

14t + 5 = 10t + 25 and

4t = 20 so

t = 5

After 5 days they will have both read the same number of pages.

Answer:

The answer is letter D.

Step-by-step explanation:

hope this helps

Answer:

First you have to take a sleep

Answer:

33

helpStep-by-step explanation:

Answer:

They intersect at (-4,-3)

Step-by-step explanation:

hope that helps

Answer:

The discount is $6, and the original price with the discount is $18.

Step-by-step explanation:

First we need to convert the percent 25%. into a decimal, 0.25.

Now we need to multiply the cost and the percentage. 24 × 0.25 =  6.

The discount is $6.

Now we need to subtract the original price and the discount.

$24 - $6 = $18.

Merry Late Christmas and Happy early New Years !!! Hope you stay safe and healthy during these times :))

Answer:

Hey,

Let A be (-1,7)

Let B be (5,1)

In order to find the distance we need to do

[tex]d = \sqrt{(x2 - x1) ^{2} + (y2 - y1) ^{2} } [/tex]

Once we plug x2=5 and x1=-1

and y2=1 and y1= 7

You get

[tex]6 \sqrt{2} [/tex]

Now to find the midpoint:

[tex]( \frac{x1 + x2}{2} \frac{y1 + y2}{2} )[/tex]

Using the same values defined above we get:

(2,4)

Please rate brainlist and give a positive review

Answer: 8.4375 U.S. dollars2

Step-by-step explanation:

Answer:

$8.44

Step-by-step explanation:

From the question it self we know that 1 pound of chicken costs $3.75. In order to solve this question we just need to find out how much 1 pound does fit into 2.25 pounds and then multiple the result by $3.75. We can find that out by dividing 2.25 by 1, and we get 2.25. Then we do the following....

2.25 x $3.75 = $8.4375

We got $8.4375 as an answer but we have to remember that when we are talking about money and we have to round to the nearest cent (which is equal to 1 hundredth of a dollar). So now we just have to round to the nearest hundredth, and we get $8.44 as our answer.

=============================================

Work Shown:

Apply the law of cosines

a^2 = b^2 + c^2 - 2*b*c*cos(A)

10^2 = 13^2 + 11^2 - 2*13*11*cos(A)

100 = 290 - 286*cos(A)

100-290 = -286*cos(A)

-190 = -286*cos(A)

190 = 286*cos(A)

286*cos(A) = 190

cos(A) = 190/286

A = arccos(190/286)

A = 48.368620460647

A = 48

Make sure your calculator is in degree mode.

Answer:

Distributive

Step-by-step explanation:

Distributive Property

Answer:

Step-by-step explanation:

Then the other angle must be 44 degrees as well.

Answer:

I been trying to look for that answer for so long but can we help each other at least

Answer:

Step-by-step explanation:

We have  Kevin's sales equation is

[tex]S=60n-5[/tex]

Step 1

Find out Dylan's sales equation

Find the slope

We need two points

We take

[tex](2,104)[/tex] And [tex](6,324)[/tex]

[tex]m=(324-104)/(6-2)[/tex]

[tex]m=\frac{220}{4} \\m=55[/tex]

Find the equation in slope intercept form

[tex]s=mn+b[/tex]

We have

[tex]m=55[/tex]

point [tex](2,104)[/tex]

Substitute and solve for b

[tex]104=55(2)+b\\[/tex]

[tex]b=104-110\\b=-6\\[/tex]

So

[tex]S=55n-6\\[/tex]

Therefore

Kevin's rate of change is 60

Dylan's rate of change is 55

Compare

Kevin's rate of change is greater than Dylan's rate of change because Kevin's sell 60 cars per year and Dylan's sells 55 cars per year.

PLEASE MARK ME AS BRAINLIEST

4L-30=70

Step-by-step explanation

perimeter of a rectangle =2(L+W)

assuming length =L

with =L-15

p= 2(L+L-15)

p= 4L-30

p=70

therefore equation of the perimeter =

4L-30=70

Answer:

Y(n)=15n+40

Step-by-step explanation:

Lets represent the number of bean stalks she plant by n and

the yield by Y.

It says in the question that when she plants 2 stalks, each plant yields 70 ounces of beans. When she plants 8 stalks, each plant yields 160 ounces of beans.

Which means 2 stalks correspond to 70 ounces and 8 stalks corresponds to 160 ounces we could write the data Mathematically like:

(2 , 70) and (8 , 160) are our coordinates where the x-axis would be n the number of beans stalks planted  and y-axis would be Y the yield in ounces.

So we have two coordinates and to find the linear relationship we must find out the slope/gradient(m) of the linear function by the formula of slope:

[tex]m=\frac{y_2-y_1}{x_2-x_1}\\\\m=\frac{160-70}{8-2} \\\\m=\frac{90}{6} \\\\m=15[/tex]

so we plug in one of the coordinates and our slope in the point-slope formula :

[tex]y-y_1=m(x-x_1)[/tex]

where,

[tex](x_1,y_1)\ represent\ the\ coordinate\ (2,70)[/tex]

so plugging in the coordinate and the value of m we get:

[tex]y-y_1=m(x-x_1)\\y-70=15(x-2)\\y-70=15x-30\\y=15x-30+70\\y=15x+40\\[/tex]

so our the answer is the last option

Y(n)=15n+40

here x corresponds to n and y corresponds to Y(n)

Answer:

Confucius ( a Chinese philosopher)

Step-by-step explanation:

Answer:

Confucius wrote the quote

Step-by-step explanation:

Honestly I think he wrote it to get across a point that is- without the common  human respect for other people,we're all nothing but "animals", and people must be courteous to one another to get anything done no matter the situation.

Step-by-step explanation:

y+7=3x

6x-2y=12

y=3x-7

6x-2(3x-7)=12

6x-6x-14=12

-14=12

There is no solution.

Answer:

Kindly check explanation

0.57691

0.4719

Step-by-step explanation

A.) The distribution of sample means must follow a normal distribution ;

Mean = 64 ; Standard deviation = 17 ;

Standard Error = s/sqrt(n) = 17 / sqrt(20) = 3.8013155

N(64 ~ 17)

Given that:

mean (m) = 64

Sample size (n) = 20

Standard deviation (s) = 17

Find

P(x < 67.3)

Z = (x - m) / s

Zscore = (67.3 - 64) / 17

Zscore = 0.1941176

P(Z < 0.194) = 0.57691 (Z probability calculator)

(c) Find P(x > 65.2).

Zscore = (65.2 - 64) / 17

Zscore = 0.0705882

P(Z > 0.0705) = 0.4719 (Z probability calculator)

Answer and Step-by-step explanation:

So, we are told that 3 positive integers multiply to be 300, and that one of the integers is 5.

First, we divide 300 by 5.

The result is 60.

Now, we take different (reasonable) numbers that add to 16:

10 and 6

12 and 4

We can see here that 10 and 6 are the integers because they add up to 16 and multiplies to 60.

#teamtrees #WAP (Water And Plant)

Answer:

The number of cars that go through the intersection each minute X has Poisson distribution with parameter λ = 11.5

and the PMF of X is;

P (X = x) = e^-λ ( λˣ / x! ); where x = 0, 1, 2, 3, , , , , ,

Step-by-step explanation:

Given that;

on average eleven and a half  cars go through the intersection each minute and It takes an average person ten seconds to walk across the intersection.

Therefore

The number of cars that go through the intersection each minute X has Poisson distribution with parameter λ = 11.5

and the PMF of X is;

P ( X = x ) = e^-λ ( λˣ / x! ) ;

where x = 0, 1, 2, 3, , , , , ,

Answer180 yards long

180

Step-by-step explanation: