Find the critical t-value that corresponds to % confidence. Assume degrees of freedom

Answers

Answer 1

Using a t-distribution, with 20 degrees of freedom, the critical t-value that corresponds to 95% confidence is t = 2.0860.

How to find the critical value for a t-distribution confidence interval?

It is found with the help of a calculator, having two inputs:

The confidence level.The number of degrees of freedom, which is one less than the sample size.

Hence, using a calculator, with 20 degrees of freedom, the critical t-value that corresponds to 95% confidence is t = 2.0860.

More can be learned about the t-distribution at https://brainly.com/question/16162795

Related Questions

Please help when you it’s important

Answers

The area of the sandbox is 5 x 5 = 25 square feet.

the cost of the sand = 25 square feet x 1.47 = $36.75

Answer: $36.75

Answer:

36.75

Step-by-step explanation:

5*5=25 ft^2

(area)

25*1.47=36.75

sand cost

x-5=16 what operation would you have to do on both sides of the equation to get x by itself

Answers

Answer:

Add 5 to both sides

Step-by-step explanation:

x-5=16

+5 +5

x=21

Answer:

Addition

Step-by-step explanation:

x - 5 = 16

x - 5 + 5 = 16 + 5

x = 21

The base of a solid S is the region bounded by the parabola x^2=8y
Cross-sections perpendicular to the yyy-axis are equilateral triangles.
Determine the exact volume of solid SSS.

Answers

Step-by-step explanation:Updated answer is the second one

What is the length of the radius? startfraction 6 over 85 endfraction startfraction 85 over 12 endfraction startfraction 121 over 36 endfraction startfraction 157 over 12 endfraction

Answers

The length of the radius will be 22 units.

What is the radius?

The radius of a circle is defined as the distance of the center of the circle to its outer layer. It is a locus of a point present at some distance from the center point.

Now from the question, we have an expression:

[tex]r=(\dfrac{6}{85} )\times(\dfrac{85}{12} )\times (\dfrac{121}{36} )\times (\dfrac{157}{12} )[/tex]

By solving the above equation we get

[tex]r=(\dfrac{18997}{864} )[/tex]

[tex]r=22[/tex]

Hence the length of the radius will be 22 units.

To know more about radius follow

https://brainly.com/question/24375372

Answer:

85/12

Step-by-step explanation:

A jeepney has an original speed of 30 m/s and a final speed of 40 m/s. Compute its
acceleration if the time of travel is 10 seconds.

Answers

Answer:

1 m/s/s.

Step-by-step explanation:

Acccelaration = rate of change of speed

= (40 - 30) /10

= 10/10

= 1 m/s/s.

Find X.

A. 32
B. 8
C. 16
D. 24

Answers

Answer: D

Step-by-step explanation:

Find the pair of acute angles that corresponds to the solution of the equation sin(3x + 11)° = cos(–3x + 79)°

Answers

Answer:

x = 8

Step-by-step explanation:

3x + 2 + 7x + 8 = 90

10x + 10 = 90

10x = 80

x = 8

A bag contains 12 toffees. Kate eats 3 toffees and Josh eats 4 toffees.
What fraction of the toffees are left?

Answers

Answer:

5/12

Step-by-step explanation:

3 + 5 = 7

12/12 - 7/12 = 5/12

Answer:

total toffees=12

remaining toffees=12-(4+3)

=12-7

fraction of toffees left

= 5/12

12 points
Will mark brainliest to who ever answers first

Answers

Answer:

80 pounds

Step-by-step explanation:

i need help fast pls

Answers

Answer:

SORRY

Step-by-step explanation:

ANSWER

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ANSWER

Fin each missing measure. Round all answers to the nearest tenth. Pls Help!!

Answers

Answer:

6.2 units

Step-by-step explanation:

The mnemonic SOH CAH TOA is intended to remind you of the relations between trig functions and sides of a right triangle.

Common segment

To find the value of x in this figure, we need to know the length of the common segment between the two triangles. That segment is opposite the 53° angle, so can be found using the sine relation:

Sin = Opposite/Hypotenuse

Opposite = Hypotenuse × Sin = 30·sin(53°) ≈ 23.9591

Missing measure

The side marked x is adjacent to the marked angle in that triangle, so the relevant relation is ...

Cos = Adjacent/Hypotenuse

Adjacent = Hypotenuse × Cos = 23.9591·cos(75°) ≈ 6.20106

The length of the side marked x is about 6.2 units.

Help on this pleases.

Answers

Answer: ASA

Step-by-step explanation:

What is the median of this data set? {12, 8, 9, 12, 10, 13, 8} Enter your answer in the box.

Answers

Answer:

the median is 10

Step-by-step explanation:

8, 8, 9, 10, 12, 12, 13

8, 9, 10, 12, 12

9, 10, 12

Answer:

Step-by-step explanation:

simplify 10 to the square root

Answers

it’s already in its simplest form _/10

Answer: 10

Step-by-step explanation: that is the answer because you can not simplify it any further

Si Adrián tiene “x” años de edad, Teresa la tercera parte de Adrián, Isabel el doble de Teresa y Felipe el cuádruple de Adrián, ¿cuánto suman las edades de los cuatro? Selecciona el inciso correcto.

Answers

the answer is ISABELLA YOUR BOYFRINDS HERE

4
True or False: The probability of an event can be greater than 1.
A True
B False
<

Answers

Answer:

False

Step-by-step explanation:

probabilities are or are between 0 and 1

1 means complete certainty

toppr

what are the coordinates of a point where graph of y=x2+3x+2 crosses the x axis

Answers

Answer:

x= -2, 0

Step-by-step explanation:

25 Points!! What is the volume of the prism 1 1/2ft 3 1/2ft 2 1/2 ft? Please answer when you have the time to.

Answers

Answer:

The first one: 13.125 ft³

The second one: 67.5 ft³

Step-by-step explanation:

For the first one:

The volume of a prism is length x width x height.

So, in this shape, the length is 3 1/2, the width is 2 1/2, and the height is 1 1/2.

However, you can conver 1/2 to .5, to make it easier to multiply.

So, 3.5 x 2.5 x 1.5 = 13.125

Make sure to add ft³, the ft is the unit, feet, and the ³ is used to denote volume, because volume is 3 dimensional.

For the second one, same formula:

Length = 6, width = 2 1/2, and height = 4 1/2

6 x 2.5 x 4.5 = 67.5

Again, make sure to add ft³, the ft is the unit, feet, and the ³ is used to denote volume, because volume is 3 dimensional.

Answer:

13.125 [tex]ft^{3}[/tex]

Step-by-step explanation:

Volume is base * length * height.

In this case, the dimensions are 1.5, 3.5, and 2.5.

Assuming these values are the base, length, and height,

1.5 * 3.5 * 2.5 = 13.125 [tex]ft^{3}[/tex].

Also, using the volume formula, the bottom shape's volume is 67.5 [tex]ft^{3}[/tex].

Hope this helps!

Also, please mark as brainliest!

Players heights:
72, 75, 78, 72, 73.
What is the range of
heights?

Answers

Answer:

Range is calculated by substracting smallest value but highest value.

Please give brainliest.

Keith writes the numbers 1 to 20 on pieces of paper and places them in a hat.
the probability of randomly selecting a number less than 16 is 3/4 choose the
likelihood that best describes the probability of this event.

Answers

To get the answer use what you know divide it and use Algebra if you know any and also ask for help scan your math that’s what Brainly is for trust me

Answer:

Likely

Step-by-step explanation:

took the test

Please help its decimals

Answers

Each line they are adding 4.96

11.72 + 4.96 = 16.68

Answer:

the correct answer is 16.68

**20 POINTS + BRAINLIEST** Please help me with the math question!

Answers

Answer:

1/6.2=15/x

Step-by-step explanation:

15:x=1:6.2

Answer:

D. [tex]\frac{1}{6.2} =\frac{15}{x}[/tex]

93 meters

Step-by-step explanation:

Howard has a scale model of the Statue of Liberty

The model is 15 inches tall.The scale of the model to the actual statue is 1 inch: 6.2 meters

1 inch = 6.2 meters

15 inches = ? meters

[tex]\frac{1}{6.2} =\frac{15}{x}[/tex] <= cross multiply

1x = 93 <== divide both sides by 1

/1 /1

x = 93 meters <== the height of the model, our final answer

Hope this helps!

The sales tax in your state is 5%. If a car cost 16,700 what is the total cost, including tax.

Answers

Answer:

17,535 dollars

Step-by-step explanation:

5% of 16,700 is 835, so add the two together and you get your answer.

What is the sum of all integers between square root of 8 and square root 113?
Answer: The sum is____

Answers

The integers between square root of 8 and square root 113 are the numbers without decimal points

The sum is 52

How to detemine the sum?

The square root of 8 is 2.82

The square root of 113 is 10.63

The integers between 2.82 and 10.63 are:

3, 4, 5, 6, 7, 8, 9 and 10

The sum of these integers is represented as:

Sum = 3 + 4+ 5+ 6+ 7+ 8+ 9 + 10

Evaluate the sum

Sum = 52

Hence, the sum is 52

Answers

The equation which John solve to find w, the greatest width in centimeters he can use for the mosaic, is w(w + 2) = 48.

What is the area of a rectangle?

Area of a rectangle is the product of the length of the rectangle and the width of the rectangle. It can be given as,

[tex]A=a\times b[/tex]

Here, (a)is the length of the rectangle and (b) is the width of the rectangle

The area of the tile is 48 square cm. John wants to make the mosaic with this tile having the length 2 cm longer than the width.

Let suppose the width of the rectangle mosaic is w cm. Thus the length of it is,

[tex]l=w+2[/tex]

As the area of a rectangle is the product of its length and width and Tte area of the tile is 48 square cm. Thus,

[tex]48=(w+2)\times w\\48=(w+2)w\\[/tex]

The equation which John solve to find w, the greatest width in centimeters he can use for the mosaic is

[tex]w(w + 2) = 48[/tex]

Learn more about the area of rectangle here;

https://brainly.com/question/11202023

Answer:

B. w(w + 2) = 48

Step-by-step explanation:

I just took the quiz.

Have the day you deserve :)

a rectangle is 9 meters long and the area is 72 square meters what is the perimeter

Answers

Answer:

Area = length × width

72 = 9 × width

8 = width (9 × 8 = 72)

pertinter = length + width + length + width

= 9 + 8 + 9 + 8

perimeter = 34

Answer:

perimeter: 34 m

Step-by-step explanation:

length : 9area : 72

width * length = area

width * 9 = 72width = 72/9width = 8 m

perimeter:

2 ( length + width )2 ( 9 + 8 )34 m

Marcus is building a fort. He needs 5 pieces of plywood each with an area of 56.25 square feet for each. If the plywood costs $1.79 per square foot, how much money will Marcus need to build his fort.

Answers

Simple answer (not exactly sure what unit your in)
56.25 X 5 = 281.25
281.25 X 1.79 = 503.4375
For 5 pieces of plywood it would equal a total of 281.25 square feet, and it would cost 503.43$

which expression shows 48+36 written as a protuct of two factors

Answers

Answer:

12(4+3)

Step-by-step explanation:

Factor out all of the problems.

Starting with 4(12+4)

This means (4*12)+(4*4)

48+16 is the answer to this

this isn't 48 + 36

12(4+3) is next

12*4 = 48

12*3 = 36

48+36 = 48 + 36

Therefore 12(4+3) is your answer

hope that helps!

hope this is what your looking for

bro no one is helping??

Answers

Answer:

A-6 , B-19 , C-55 , D-119 , E-70

Step-by-step explanation:

Subtract 68 from 138 to find out how many 8th graders in total, and that will get you blank E.

Subtract 64 from 70 (E) to find out blank A.

Add 6 and 13 get the total for TV, blank B.

To get blank C, you need to subtract 13 from 68.

For the last blank, blank D, you need to add 55 (blank C) and 64, which will give you 119.

Express a in terms of c and p 4(2a+p) = c+p+a

Answers

Answer:

[tex]\frac{c-3p}{7}[/tex]

Step-by-step explanation:

1) 4(2a+p)=c+p+a

2) Expand: 8a+4p=c+p+a

3) subract a and 4p: 7a=c-3p

4) Divide: a=[tex]\frac{c-3p}{7}[/tex]

Answer provided by Education Point

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