A researcher conducts a hypothesis test using a sample of n = 40 from an unknown population. What is the df value for the t statistic?

a. 38
b. 39
c. 40
d. 41

Answer:

9

Step-by-step explanation:

ya i bthink 9

Answer:

um it like is 10 instead

Step-by-step explanation:

im sorry if this is wrong, imma lol slow:)

Answer:

30.6

Step-by-step explanation:

The sine rule of trigonometry helps us to equate the side of the triangles to the angles of the triangles. The length of the side j is 30.6 cm.

The sine rule of trigonometry helps us to equate the side of the triangles to the angles of the triangles. It is given by the formula,

[tex]\dfrac{Sin\ A}{\alpha} =\dfrac{Sin\ A}{\beta} =\dfrac{Sin\ A}{\gamma}[/tex]

where Sin A is the angle and α is the length of the side of the triangle opposite to angle A,

Sin B is the angle and β is the length of the side of the triangle opposite to angle B,

Sin C is the angle and γ is the length of the side of the triangle opposite to angle C.

Given the length of i is 53 cm, while the measure of the ∠I is 120°. Also, the measure of ∠J is 30°. Therefore, the length of the side j is,

[tex]\dfrac{Sin\ A}{\alpha} =\dfrac{Sin\ A}{\beta} =\dfrac{Sin\ A}{\gamma}\\\\\dfrac{Sin\ I}{i} =\dfrac{Sin\ J}{j} \\\\\dfrac{Sin\ 120^o}{53} =\dfrac{Sin\ 30^o}{j} \\\\j = \dfrac{Sin\ 30^o \times 53}{Sin\ 120^o}\\\\j = 30.5995 \approx 30.6\rm\ cm[/tex]

Hence, the length of the side j is 30.6 cm.

Learn more about Sine Rule:

https://brainly.com/question/17289163

#SPJ2

Answer:

m=17

Step-by-step explanation:

Complementary means they add to equal 90 degrees.

1) 90-A=36

2)36=2x+2

3) Subtract 2 from both sides, 34=2x

4) Divide by 2 17=x

Answer:

Sure ill help i need the question tho not a picture

Step-by-step explanation:

Answer:

It is 10 Units

Step-by-step explanation:

Mark me brainliest please :)

also this is EDG 2020

Answer:

10 units

Step-by-step explanation:

In the given figure, we may plot a point B with the coordinate pair (-5,-1).

Lets now draw a triangle ABC by connecting A and C with B perpendicularly.

We now know that,

AB = 5+3 = 8 units

CB=1+5= 6 units

[tex]As\ the\ drawn\ triangle\ is\ a\ right\ triangle, \ as\ angle\ CBA\ is\ 90\ degrees.\\Through\ Pythagoras\ Property,\ we\ may\ conclude\ that\ :\\ AB^{2} + BC^2 = CA ^2\\Hence, \\8^2+6^2=AC^2\\64+36=AC^2\\100=AC^2\\AC=10[/tex]

Given:

The equation is

[tex]F=\dfrac{9}{5}C+32[/tex]

To find:

Whether there is a proportional relationship between C and F.

Solution:

If there is a proportional relationship between C and F, then the line of given equation passes through (0,0) and the equation must be true for (0,0).

Put F=0 and C=0 in the given equation.

[tex]0=\dfrac{9}{5}(0)+32[/tex]

[tex]0=0+32[/tex]

[tex]0=32[/tex]

This statement is not true because [tex]0\neq 32[/tex].

It means the line of given equation does not passes through (0,0). So, it s not a proportional relationship.

Hence, there is not a proportional relationship between C and F.

Answer:

korrect

Step-by-step explanation:

it looks right

Answer:

-39.24

Step-by-step explanation:

mark me brainliest plz

Answer:

86.24

Step-by-step explanation:

23.5 + - (-62.74) = ​

Distribute the negative with (-62.74)

23.5+62.74

Add

86.24

Answer:

11 x 1 = 11

hope this helped

Brainliest please <3

Answer:

11*1

Step-by-step explanation:

I'm sorry that's all I can think of.

Answer:

sorrry if wrong i thinks its A

Step-by-step explanation:

sorry i cant explain i can only help with first half

Answer:

y=2/9x+2

Step-by-step explanation:

Answer:

y = [tex]\frac{2}{9}[/tex] x + 2

Step-by-step explanation:

Slope intersept form is y = mx +b

Y-intersept (b) is 2

Slope (m) is [tex]\frac{2}{9}[/tex]

Plug the slope(m) and Y-intersept (b) into y = mx +b : y = [tex]\frac{2}{9}[/tex] x + 2

Answer:

3375 is the answer.

Step-by-step explanation: 8500- 1025=7475

so 1025 is every to years so we need to subtract 7475-1025-1025-1025-1025 so each 1025 is 2 yrs.

I hope this works :)

Get the derivative:

y = (9 - x²)¹ʹ³

dy/dx = 1/3 (9 - x²)⁻²ʹ³ d/dx [9 - x²]

dy/dx = 1/3 (9 - x²)⁻²ʹ³ (-2x)

dy/dx = -2/3 x (9 - x²)⁻²ʹ³

Evaluate it at x = 1 :

dy/dx (1) = -2/3 • 8⁻²ʹ³

Since 8 = 2³, we have

8⁻²ʹ³ = 1 / 8²ʹ³ = 1 / (2³)²ʹ³ = 1 / 2² = 1/4

Then the tangent line has equation

y - 2 = 1/4 (x - 1)   →   y = 1/4 x + 7/4

Answer:

and das on periodt

Step-by-step explanation:

P E R I O D T B O O

Answer:

A

Step-by-step explanation:

This is because line B has less water than A within the same time period. For example, lets say that each container had to be filled within 5 minutes. Container A would already be filled up within that time. Line B would be trailing behind a little.

Answer:

A

Step-by-step explanation:

because if we see from the graph:

let's say they are powered by x minutes

Thus A is filled while B is only a half

so container A is filling more quickly

I hope this helps you :)

Answer:

C and D

Step-by-step explanation:

Use a calculator for the sq rt

Answer:

-3 and 3

Step-by-step explanation:

Answer:

m/5 is one term and it is separated by 4*6 by add sign there are two terms

Step-by-step explanation:

hope this helps.

Answer:

There are 3 terms

Step-by-step explanation:

m/5 is 1 term

4 is 1 term

6 is 1 term

Answer:

Letter D. 1490

Answer:

What does P stand for

Step-by-step explanation:

It should say

Answer:

p - 6

is just 5 i think

Step-by-step explanation:

if this helps please mark brainlist

Answer:

22 times 8 is equal to 176

Step-by-step explanation:

Answer:

63/8

Step-by-step explanation:

3/8+ 7 1/2 = 3/8+ 15/2= 3/8+60/8= 63/8

Answer: I think it’s 7 5/8 I’m not sure

Step-by-step explanation:

Answer:

Chloe prepared 32 kilograms if she worked for 8 hours.

Step-by-step explanation:

28 ÷ 7 = 4

4 kilograms per hour worked

4 × 8 = 32

Answer:

32 kilograms

Step-by-step explanation:

The proportion of kilograms of dough to the number of hours worked is [tex]\frac{28}{7}[/tex] which equals to 4 kilograms / hour.

You multiply 4 kilograms/hour by the number of hours she worked which is 8 hours so 4 kg/hour (8 hours) = 32 kilograms.

Answer:

Width is 9 1/2 in.

Step-by-step explanation:

My reasoning is that, since youve gotten the area (99 3/4), your asked to find the width. You have the length which is 10 1/2. In this situation youre expected to divide. What you divide is 99 3/4 by 10 1/2. If you calculate this, you get a quotient of 9 1/2. I’m not very ethical at explanations, but I hope you found it helpful somehow.

Answer:

Simplifying 6x * 3y * 9x2y4 Reorder the terms for easier multiplication: 6 * 3 * 9x * y * x2y4 ... When you enter an expression into the calculator, the calculator will simplify the ... For addition and subtraction, use the standard + and - symbols respectively.

Step-by-step explanation:

Answer:

Step-by-step explanation:

how many did he sell in the first place

Answer:64

Step-by-step explanation:

Answer:

2fiftguvvbbhb to the following ad listing has ended on the same to ensure everyone I r