In a television commercial, the manufacturer of a toothpaste claims that more than four out of five dentists recommend the ingredients in its product. To test that claim, a consumer-protection group randomly sampled 400 dentists and asked each dentist whether they would recommend the ingredients in the manufacturer's toothpaste. 334 of the 400 dentists responded that they would recommend the ingredients in the manufacturer's toothpaste. Can the consumer-protection group conclude that the manufacturer's claim is true

Answers

Answer 1

Answer:

Following are the responses to the given question:

Step-by-step explanation:

n = 400

x = amount of displaying the reacts which would allow the fixing in the producing toothpaste = 334

Its value is more than [tex]\frac{4}{5}[/tex] dentists suggest the ingredient of the product.  

[tex]\to p > \frac{4}{5}\\\\\to p > 0.8\\\\[/tex]

Level of significance =[tex]\alpha =0.01[/tex]


Related Questions

x^2-4x+6x-24 factored​

Answers

Answer: (X+6)(x-4)

Step-by-step explanation:

x^2-4x+6x-24 ==> x^2+2x-24

*Find two numbers that multiplied gives you -24 and add up to 2*

(6)(-4)= -24          6-4=2

Final result= (x+6)(x-4)

which equation represent the line that passes through (-5,-3) and (-2,1)?

Answers

Answer:

y = 4/3x + 11/3

Step-by-step explanation:

y2 - y1 / x2 - x1

1 - (-3) / -2 - (-5)

4 / 3

y = 4/3x + b

1 = 4/3(-2) + b

1 = -8/3 + b

b = 11/3

y = 4/3x + 11/3

Please help :( I’ve been on this fit awhile

Answers

Okay think the answer b

240 t-shirts made in 9 hours. Round to the nearest tenth.

Answers

Answer:

240/9=26.6666666667

Rounded:

26.7

Brainlist Pls!

Jimmy buys 5 notebooks that each cost the same amount and 1 binder that costs $7.50. The total cost is $18.75. How much does each notebook cost?
Choices:
A. $2.25
B. $5.24
C.$2.52
D.$3.80​

Answers

Answer:

A. $2.25

Step-by-step explanation:

If you subtract $7.50 from $18.75 you get $11.25, then divide that by 5 and you'll get $2.25.

Hope this was useful.

Answer:

The answer would be $2.25

Step-by-step explanation:

If you multiply 2.25 with 5 you get 11.25 so now you just add the 7.50 to it and that's how you get 18.75

HELPPOO MEEEEE plessss

Answers

the answer is yes. Why? Because if you move a vertical line across the graph, at any given moment, it only touches one point. If it touched more than one point it wouldn't be a function.

Lashonda's penny bank is
7/10 full. After she removes 240 pennies, it is 1/2 full. How many pennies can Lashonda's bank hold?

Answers

Loshonda’s bank can hold 480 pennies because when it was half full it was 240 and then you multiply 240 by 2 and you get 480. I don’t know if this is right. i’m sorry if it isn’t :(

Which equation represents the model?

Answers

Answer:

aall

Step-by-step explanation:

The answer is: 3 (s+4) = 30

88=(−x+3)8 , please? step by step? thanks <33

Answers

Answer:

-8

Step-by-step explanation:

88=(-x+3)8

88= -8x+24

88-24= -8x

64= - 8x

- x= 64/8

-x=8

x= -8

88 = ( -x + 3) x 8

88 = (3-x) x 8

8= 8 (3-x)

88/8 = 3 - x

11 - 3 = -x

8 = -x

-8 = x

x = -8

Can someone help me with these questions?

Answers

1) 11 books per box with one in the envelope.
2) 44 books are on one shelf. There is 1 book left over.
3) day 9
4) 8 books.

The sides of a whiteboard are 20 inches by 10 inches. How many 2 inch by 2 inch Post-it notes will be needed to cover the entire whiteboard?

Answers

Answer:

50

Step-by-step explanation:

Given that:

Sides of whiteboard :

Length = 20 inches

Width = 10 inches

Dimension of post it notes :

Length = 2 inches

Width = 2 inches

Dimension of white board / dimension of post it notes :

Length = 20 / 2 = 10

Width = 10 /2 = 5

Amount of post it notes required to cover white board :

10 * 5 = 50 post it notes

Is this right? Please help me

Answers

Answer:

Yes.

Step-by-step explanation:

Every tenth is equal to ten one-hundreths/10%. So, since 0.2 is essentially a different way to write 20%, 20% of customers wanted cheese and no chili.

A flagpole that is 21 ft tall casts a shadow that is 30 ft long. What is the angle of elevation of the sun when this shadow is cast?

Answers

Answer:

34.99°

Step-by-step explanation:

CHECK THE ATTACHMENT FOR THE FIQURE

Let angle( X) = angle if elevation

From trigonometry, tan(X)= opposite/ adjacent

Height of the flagpole= 21 ft , which is the opposite side

The base, adjacent side = 30 ft

If we substitute the values we have

Tan(X) = 21/30

Tan(X)= 0.7

Tan-1(0.7)=34.99°

Hence, the angle of elevation of the sun when this shadow will cast is 34.99°

What is the product of 4/5 * 7/8 * 2/3 in its simplest form?​

Answers

Answer:

7/15

Step-by-step explanation:

What is the sum of 5.6 + 2.89?

Answers

Answer:

The sum is 8.49

Step-by-step explanation:

All you have to do is add the tenths place together but keep the hundredths the same. Hope this helps.

Quadrilateral RUST has a vertex at R(2, 4).
T
U
S
What are the coordinates of R'after a dilation by a scale factor of 3, centered
at the origin, followed by the translation (x, y) - (x + 4, y)?
A. (10,4)
B. (10, 12)
C. (10, 16)
D. (18,12)

Answers

Given:

The coordinate of point R in quadrilateral RUST are (2,4).

R is dilated by a scale factor of 3, centered at the origin, followed by the translation [tex](x, y)\to (x+4,y)[/tex].

To find:

The coordinates of R' after dilation and translation.

Solution:

If a figure is dilated by a scale factor of 3, centered at the origin, then

[tex](x,y)\to (3x,3y)[/tex]

We value R(2,4).

[tex]R(2,4)\to R_1(3(2),3(4))[/tex]

[tex]R(2,4)\to R_1(6,12)[/tex]

The rule of translation is:

[tex](x, y)\to (x+4,y)[/tex]

Using this rule, we get

[tex]R_1(6,12)\to R'(6+4,12)[/tex]

[tex]R_1(6,12)\to R'(10,12)[/tex]

Therefore, the coordinates of point R' are (10,12) and the correct option is B.

convert 1 1/2 years into month?

Answers

Answer:

So 1 year would be 12 months and half a year is 6 months. So 1 1/2 years is 18 months.

Step-by-step explanation:

Answer:

the amount of months is 18

Step-by-step explanation:

in one year there is 12 months

half of 12 is 6

add 12 and 6 together

    12

+  6

----------

   18

~hope this helped :3~

helpppp lol two questions

Answers

Answer:

1. x= y/5 + 22/5    

2. y=17 − 3x2

Step-by-step explanation:

Please help me I need help NO LINKS
LINKS =REPORT
PLEASE
PLEASE
PLEASE
Has nothing to do with the top one I just can’t edit
THANK YOU FOR THE PEOPLE WHO HELP

Answers

Answer:

I'd say A is the correct answer. There's a chance I'm wrong but I don't think so

Answer:

B.

b + t = 15

2b + 3t = 45

Hope it helps!

Find the complement of the angle 103º
(Let me know if it's impossible. NO LINKS!!)

Answers

Answer:

I don't think you can

Step-by-step explanation:

Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

Edit: Nvm I got it:)

Answers

Answer:

Step-by-step explanation:

Question

Find the perimeter of a triangle with vertices A(2,5) B(2,-2) C(5,-2). Round your answer to the nearest tenth and show your work.​

perimeter of a triangle = AB+AC+BC

Using the distance formula

AB = sqrt(-2-5)²+(2-2)²

AB = sqrt(-7)²

AB =sqrt(49)

AB =7

BC = sqrt(-2+2)²+(2-5)²

BC = sqrt(0+3²)

BC =sqrt(9)

BC =3

AC= sqrt(-2-5)²+(2-5)²

AC= sqrt(-7)²+3²

AC =sqrt(49+9)

AC =sqrt58

Perimeter = 10+sqrt58

What is the volume...no links as the answer. Please help asap this is urgent.

Answers

let me just stop to think

Evaluate the expression for v = 8

Answers

V = 8, because it can’t be simplified any further.


The fastest pizza box folder can assemble 8 pizza boxes in 21 seconds. At this rate, how long would it take to assemble 20 pizza boxes?

Answers

Answer:

52.5 seconds.

Step-by-step explanation:

21/8 is the ratio of how long it takes the person to assemble one box. which is 2.625 times that by the pizza boxes and you got the answer

Answer:

10.5

Step-by-step explanation:

      21+21=42

      21/8=2.625

      2.625×4=10.5

        MAKE ME BrAiNlIeSt PLS!!!!

         IF WRONG SORRY

A gaming PC valued at $2500 depreciates at a rate of 12.5% per year.

Write a function that models the value of the computer over time.

Find the value of the PC after 3 year.

Answers

Answer:

v=2500-312.5x, after 3 years its worth 1562.5$

Step-by-step explanation:

if you buy 4 balloons and the total price is 6 how much is each balloon

Answers

Answer:

1.5

Step-by-step explanation:

Answer:

$1.50

Step-by-step explanation:

do 6 divided by 4

WILL GIVE BRAINLIEST ANSWER!!!!

1. Find the area of the sector.

2. What is the base of the triangle?

3. What is the height of the triangle?

4. Find the area of the triangle.

5. Find the area of the shaded segment.

Answers

Answer:

second account

Step-by-step explanation:

hcjdlajshdksksjs

Emily and her friends pick 27 lb of blueberries each pound of blueberries contains 195 blueberries how much blueberries been Emily and her friends pic ​

Answers

Given: 195 blueberries = 27 pounds
To find: How much Emily picked for her friends
Solve: Since 1 pound of blueberry is 195, Multiply 195 by 27
195 * 27 = 5265
Hence, Emily picked 5265 blueberries for her and her friends

Find the area of a regular hexagon inscribed in a circle with a radius of 6 feet. Round to the nearest tenth.
93.5 feet^2
187 feet^2
46.8 feet^2
102.3 feet^2

Answers

Answer:

93.5ft

Step-by-step explanation:

would -60 be the opposite of 60?

Answers

Answer:

yes,please mark me brainlest

Step-by-step explanation:

Answer:

Yes.

Step-by-step explanation:

A negative number is the opposite of it's positive.

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