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4 years ago

Which of the following statements exemplifies a null hypothesis?

Mathematics

1 answer:

elixir [45]4 years ago

5 0

Answer:

(A) there is no relationship between gender and jury verdicts

Step-by-step explanation:

The null hypothesis is the one in which we assume that there are no relationship between measures.

In this exercise, the only option that assume no relationship between measures(gender and jury verdicts) is

(A) there is no relationship between gender and jury verdicts

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Help it’s homework please it’s due today

IgorLugansk [536]

Answer:after an hour i think it's at the sea

Step-by-step explanation:

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2 years ago

Read 2 more answers

X + y = 3<br> 3x + 2y = 14

Zepler [3.9K]

Answer:

x = 8 , y = -5

Step-by-step explanation:

Solve the following system:

{x + y = 3 | (equation 1)

3 x + 2 y = 14 | (equation 2)

Swap equation 1 with equation 2:

{3 x + 2 y = 14 | (equation 1)

x + y = 3 | (equation 2)

Subtract 1/3 × (equation 1) from equation 2:

{3 x + 2 y = 14 | (equation 1)

0 x+y/3 = -5/3 | (equation 2)

Multiply equation 2 by 3:

{3 x + 2 y = 14 | (equation 1)

0 x+y = -5 | (equation 2)

Subtract 2 × (equation 2) from equation 1:

{3 x+0 y = 24 | (equation 1)

0 x+y = -5 | (equation 2)

Divide equation 1 by 3:

{x+0 y = 8 | (equation 1)

0 x+y = -5 | (equation 2)

Collect results:

Answer: {x = 8 , y = -5

3 0

4 years ago

To understand the conditions necessary for static equilibrium. Look around you, and you see a world at rest. The monitor, desk,

hammer [34]

Answer:

Option A - ∑Fx and ∑τz and ∑Fy

Step-by-step explanation:

All the force will be in x and y plane only

So Torque will be in z plane

These 3 quantities should be 0

∑Fx and ∑τz and ∑Fy

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4 years ago

A 1000 gallon tank, initially full of water, develops a leak at the bottom. Given that 300 gallons of water leak out in the firs

Over [174]

Answer:

option F

Step-by-step explanation:

given,

capacity of tank = 1000 gallon

volume of water leak = 300 gallon

time = 30 min

water is leaking at the rate

formula used

$A = B e^{-kt}$

At t = 0 A = 1000 gallons

$1000= B e^{-k\times 0}$

B = 1000

$A = 1000 e^{-kt}$

at t = 30 A = 700

$700= 1000 e^{-k\times 30}$

$e^{-k\times 30}=0.7$

taking ln both side

$-k\times 30=ln(0.7)$

$k=-\dfrac{ln(0.7)}{30}$

now,

$A = 1000 e^{\dfrac{ln(0.7)}{30}t}$

$A = 1000\times 0.7 e^{\dfrac{t}{30}}$

$A = 700 e^{\dfrac{t}{30}}$

hence, the correct answer is option F

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3 years ago

Find dy/dx for y= 4^lnx

Vedmedyk [2.9K]

Answer:

$\frac{ {4}^{ ln(x) } ln(4) }{x }$

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3 years ago