You think (claim) that the average franchise investment information shown in
the graph above is incorrect, so you randomly select 30 franchises and
determine the necessary investment for each. The sample mean investment is
$135,000 with a standard deviation of $30,000. Is there enough evidence to
support your claim at a = 0.05?

You Think (claim) That The Average Franchise Investment Information Shown Inthe Graph Above Is Incorrect,

Answers

Answer 1
Ok I’m not trying anything for real but it’s for a couple days I’m going
Answer 2

Using t-test, there isn't an enough evidence to support our claim that investment average is $135,000 at α = 0.05.

What is t - test?

The one sample t test compares the mean of your sample data to a known value (population mean in our question, i.e. , we wish to compare the sample mean with the population mean). One sample t test should be used when you the population standard deviation is not known or the sample size is very small.

Assumptions of the t-test for the test to be valid:-

Data is independent.Data is collected randomly. For example, with simple random sampling.The data is approximately normally distributed.

Null hypothesis:  μ = $143,260

Alternative hypothesis: μ < $143,260

Calculating test statistic.

n = 30

sample mean = $135,000

sample standard deviation = $30,000

[tex]t_{0} = \frac{sample\ mean - population\ mean}{\frac{standard\ deviation}{\sqrt{sample\ size} } }[/tex]

[tex]t_{0} = \frac{135000 - 143260}{\frac{30000}{\sqrt{30} } }[/tex]

|to| = 1.508

Test criteria:

level of significance = 0.05

t(0.05, 29) = 1.6991

Since, |to| = 1.508 < t(0.05, 29) = 1.6991, null hypothesis cannot be rejected.

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Related Questions

which of the following could be factored by grouping?
a. wy+wz+xy-xz
b. wy+yz-wx+yz
c. wy+wz+xy+xz
d. wx+wz-wy+wv

Answers

Answer:

wy+wz+xy+xz

Step-by-step explanation:

C.) wy+wz+xy+xz  could be factored by grouping.

What is factorization by grouping?

Method of factorization by grouping the terms:

(i) From the groups of the given expression a factor can be taken out from each group.

(ii) Factorize each group.

(iii) Now take out the factor common to group formed.

= wy + wz + xy + xz

= w(y+z) + x(y+z)

= (w+x)(y+z)

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What is
as a percent?
20%
35%
6%
60%

Answers

Answer:

60%

Step-by-step explanation:

Answer:

60%

Step-by-step explanation:

Tell how many solutions each one has

Answers

Answer:

Step-by-step explanation:

1) 3(x + 2 ) +4  = 31

3*x + 2*3 + 4 = 31

3x + 6 + 4 = 31

  3x + 10   = 31           {Subtract 10 from both sides}

          3x = 31 - 10

         3x = 21        {divide both sides by 3}

          x = 21/3

x = 7

This equation has one solution

2) 3x + 1 = 3x + 9

Subtract 3x form both sides

3x + 1 -3x = 3x + 9 - 3x

1 ≠ 9

There is no solution for this equation.

3) 2x - 4 = 2x -4

This equation has many solution

How to find the point of intersections on these equations? (x+6)^2 =-12 (y+2) x^2/81 + y^2/100 =1

Answers

Answer:

Graphically.

Step-by-step explanation:

We have the equations:

(x + 6)^2 = -12*(y + 2)

(x^2/81) + (y^2/100) = 1

First, we can see that the second one is an ellipse, and we can write it as:

(x/9)^2 + (y/10)^2 = 1

This adds some complexity to our problem.

The first equation is just a quadratic equation, that we can write in standard form as:

y = (x^2 + 12*x + 36)/(-12) - 2

y = (-1/12)*x^2 - x - 5

Then our two equations are:

(x/9)^2 + (y/10)^2 = 1

y = (-1/12)*x^2 - x - 5

This is actually really hard to solve analytically, we may end with a quartic equation or something like that (this happens for the nature of the ellipse equation)

So now that we have two rather simple equations that we know how to graph (or that we can just input the equations in a program and graph them) we can find the intersections visually.

You can see the graph of this below:

Of course, this only works to find estimations for the intersections, where one intersection is (3.35, -9.28) and the other is at (-8.69, -2.6)

The graph of line p represents = x-1. If the slope of line p is multiplied by (-10)
to create liner, which statement about the graphs of the two lines is true?
A
Line r intersects line p.
B Line ris parallel to line 2.
CLine ris 10 units above line p.
D
Line ris 10 units below line p.

Answers

Answer:

A. Line r intersects line p

Step-by-step explanation:

to find the second graph multiply the slope of line p by -10

slope is 1/5 or 0.2

So,

0.2 * -10 = -2

slope of second line is -2

Graph shown

Altered line shown in blue

Line p shown in green

As you can see, they intersect and meet no other answers

If you have supplementary angles and one of the angles is 123°, what is the other angle?

Answers

Answer:

57 degrees.

Step-by-step explanation:

180 - 123 = 57.

Answer:

im pretty sure its 57

Step-by-step explanation:

Also love your profile picture

Given: Circle k(O), diameter US , m RU=50°, m UT=30° Find: m∠RUS, m∠UST

**WILL GIVE BRANLIEST**

Answers

Applying the inscribed angle theorem, the missing angles are:

m∠RUS = 65°m∠UST = 15°

What is the Inscribed Angles Theorem?

Based on the inscribed angle theorem, we have the following relationships:

Inscribed angle = 1/2(measure of intercepted arc)Central angle = measure of intercepted arc.

Given the following:

m(RU) = 50°m(UT) = 30°

Find m(RS):

m(RS) = 180 - m(RU)

Substitute

m(RS) = 180 - 50

m(RS) = 130°

Find m∠RUS:

m∠RUS = 1/2(m(RS) [inscribed angle theorem]

Substitute

m∠RUS = 1/2(130)

m∠RUS = 65°

Find m∠UST:

m∠UST = 1/2(m(UT))

Substitute

m∠UST = 1/2(30)

m∠UST = 15°

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Sort the data from least to greatest.
276 363 311 253
Find the median number of calls.​

Answers

Answer:

253,276,311,363    293.5 is the mdien.

Step-by-step explanation:

Answer:

293.5

Step-by-step explanation:

Least to greatest: 253, 276, 311, 363

Median = middle

If there are two middle numbers find the mean of the two numbers.

276 + 311 = 587

587/2 = 293.5

Hope this helps!! Have a great day and remember, you are loved.

what is the equation of the line that passes through the point (-6,3) and has a slope of -1/6

Answers

Answer:

y = -1/6x + 2

Step-by-step explanation:

y = -1/6x + b

3 = -1/6(-6) + b

3 = 1 + b

2 = b

A car priced at $ 60000 is sold for $57000. Find the percentage discount.


answeerrrr quick pls trest is going on pls pls

Answers

The percentage discount is 5%


Question 2 (1 point)
drawing a vowel from letter tiles that spell out MATHEMATICS
chance
Blank 1:
Blank 2:

Answers

Answer:

3/ 8 ; 3/8

Step-by-step explanation:

MATHEMATICS

vowels in mathematics = (A, E, I)

letters in mathematics = (M, A, T, H, E, I, C, S)

Probability = required outcome / Total possible outcomes

Required outcome = vowels in mathematics = 3

Total possible outcomes = letters in mathematics = 8

Probability of drawing a vowel letter tiles = 3/8

2.)

Spinner division :

Red = 4 ; white =2 ; green = 1 ; blue = 1

Total divisions = 8

Probability (landing on blue) = number of blue / total

P(landing on blue) = 1 / 8

P(landing on white) = 2/ 8 = 1/4

P(landing on blue or white) = 1/8 + 2/8 = 3/8

−6(4a +3) Multiply the polynomial below

Answers

Answer:

[tex] - 6(4a + 3) \\ =( - 6 \times 4a) + ( - 6 \times 3) \\ = - 24a - 18 \\ [/tex]

Step-by-step explanation:

-6(4a+3)

(-6×4a) (-6×3)

-24a-18

what is 3 2/4 as a whole number​

Answers

Answer:

4

Step-by-step explanation:

3 2/4 = 3.5

If rounded up,

3.5 ≈ 4 as a whole number

7. Find f(9) when f(x) = 12 (17 – 3x) *​

Answers

Answer:

-120

Step-by-step explanation:

Ralph and Jody go to the shop to buy potato chips and candy bars.

Ralph buys 3 bags of potato chips and 4 candy bars. He spends

Jody buys 4 bags of potato chips and 2 candy bars. She spends $3.00.

Later Clancy joins Ralph and Jody and asks to buy one bag of potato chips and one candy bar from

them. They need to work out how much he should pay.

Ralph writes

3p+ 4b = 375

1. If p stands for the cost, in cents, of a bag of potato chips and b stands for the cost, in cents, of a

candy bar, what does the 375 in Ralph's equation mean?

Answers

Answer:

375 represents the amount Ralph paid for 3 bags of potato and 4 candy bars

Bag of potato = 45 cent

Candy = 60 cents

Step-by-step explanation:

375 represents the amount Ralph paid for 3 bags of potato and 4 candy bars

3p + 4b = 375 - - (1)

4p + 2b = 300 ---(2)

From (2)

4p = 300 - 2b

p = 75 - 0.5b

Put b = 75 - 0.5b

3(75 - 0.5b) + 4b = 375

225 - 1.5b + 4b = 375

225 + 2.5b = 375

2.5b = 375 - 225

2.5b = 150

b = 150 / 2.5

b = 60

3p + 4(60) = 375

3p + 240 = 375

3p = 375 - 240

3p = 135

p = 45

Bag of potato = 45 cent

Candy = 60 cents

CAN U HELP ASAP ILL GIVE 15 POINTS AND PROLLY BRAINLIEST IT

Answers

Answer:

(2, 8)  and (3, 11)    --- > For example

Step-by-step explanation:

Plug in any number for x

I will use 2.

So if the equation is y = 3x + 2, then the new equation will be ...

y = 3(2) + 2

y = 6 + 2

y = 8     ----> One coordinate can be (2, 8)

Another number you could use is 3.

y = 3(3) + 2

y = 9 + 2

y = 11    ----> Another coordinate may be (3, 11)

I’ve inserted a picture below. Hope this helps!

Can someone please help on this question

Answers

Answer:

area = 147.03 cm²

Step-by-step explanation:

area =16.9 x 8.7 = 147.03 cm²

Answer:

147.03cm

Step-by-step explanation:

A parallelogram is just a tilted rectangle, so it uses the same formula, base times height.

This would be 8.7 × 16.9

 87 × 169 = 14703

move the decimal to get

8.7 × 16.9 = 147.03

the area of the shape is 147.03 cm, don't forget the cm sign!

good luck my friend :D

-cheesetoasty

Maria must choose a number between 55 and 101 that is a multiple 4,8 of and 12 . Write all the numbers that she could choose. If there is more than one number, separate them with commas.

Answers

Answer:

they mean numbers that 4,8 12 can go into and there between 55 and 100 answers: 60,72,80,96,100

In a sale, the normal price of a book is reduced by 20%.
The sale price of the book is £4.80
Work out the normal price of the book

Answers

Answer:

5.76

Step-by-step explanation:

4.80×.20=0.96

4.80+0.96=5.76

Write the number in standard form 2.7. x 10^-4

Answers

Answer:

2.7 x 10^-4 = 0.00027

Step-by-step explanation:

This equation is already in standard form. So if you're looking for the answer, there it is.

plzzzz help ASAP! Due in 5 mins

Answers

d=diameter ;r=radius
answer: i put both just in case

Giving brainlist to who ever answers this

Answers

Answer:

N=47.3

Step-by-step explanation:

hope it helps.I have minused90 because that is a 90 degree angle


Help!!!! Asappppppppp

Answers

Answer:

it is D

Step-by-step explanation:

PLS HELP ME ITS MATH PLSSSS
25 points if u help I’ll send 40 moreeee

Answers

Answer:

x= 45

I hope it's helps you

Please help.... Jason saves $12 each week. What expression represents the total money he saved after y weeks.

a. 12 + y

b. y/12

c. y × 12

d. 12 - y

Answers

C is the correct answer

Find the surface area of the prism.

Answers

Answer:

108

Step-by-step explanation:

triangles of the sides 3×4=12

5×8=40

4×8=32

3×8=24

add everything

Make q the subject of the formula p = 2q2 .​

Answers

Answer:

q = ± [tex]\sqrt{\frac{p}{2} }[/tex]

Step-by-step explanation:

Given

p = 2q² ( divide both sides by 2 )

[tex]\frac{p}{2}[/tex] = q² ( take the square root of both sides )

± [tex]\frac{p}{2}[/tex] = q

Answer:

q = +√p/2

Step-by-step explanation:

p = 2q²

divide both sides by 2 and root we get,

√p/2 = √2q²/2

√p/2 = q

q = +√p/2

Thus, q = +√p/2

-TheUnknownScientist

How was y'all day :)?

Answers

Except it’s 1 am it was pretty cool

Which is NOT a solution to the inequality below? 3x + 13≥ -8

Answers

x≥−7. hope this helps you good luck

. If three angle of a quadrilateral are in the ratio 2: 3: 5 and fourth angle is 130
find the angles​

Answers

Total ratio = 2 + 3 + 5 = 10
Sum of angles in a quadrilateral is 360
4th angle = 130
360 - 130 = 230
Sum of remaining 3 angles must be equal to 230
1st angle 2/10 * 230 = 46
2nd angle 3/10 * 230 = 69
3rd angle 5/10 * 230 = 115
Adding all angles together 46 + 69 +115 + 130 = 360

Answe

[tex]\huge\mathfrak\red{hello} \\ \\ sorry \: again[/tex]

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