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Nutka1998 [239]
3 years ago
14

I need help on this question

Mathematics
1 answer:
vaieri [72.5K]3 years ago
5 0

I'm guessing it is 10? or 7?

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how many such tests would it take for the probability of committing at least one type i error to be at least 0.7? (round your an
drek231 [11]

The number of tests that it would take for the probability of committing at least one type I error to be at least 0.7 is 118   .

In the question ,

it is given that ,

the probability of committing at least , type I error is = 0.7

we  have to find the number of tests ,

let the number of test be n ,

the above mentioned situation can be written as

1 - P(no type I error is committed) ≥ P(at least type I error is committed)

which is written as ,

1 - (1 - 0.01)ⁿ ≥ 0.7

-(0.99)ⁿ ≥ 0.7 - 1

(0.99)ⁿ ≤ 0.3

On further simplification ,

we get ,

n ≈ 118 .

Therefore , the number of tests are 118 .

Learn more about Error here

brainly.com/question/17062640

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4 0
1 year ago
I need help it’s due in 10 mins ASAP <br> I’ll mark you as a brainlist please help
Lady_Fox [76]
Take DEBC a parralelogram
Parralel sides are DE and BC
THEREFORE,
1/2*(a+b)*h
1/2*(6+15)*h
1/2*(21)*h=0
10.5*h=0
h=-10.5
3 0
3 years ago
The county fair charges $1.25 per ticket for the rides. Jermaine bought 25 tickets for the rides and spent a total of $43.75 at
aniked [119]

Hello Anna,

(a)

1.25 per ticket

? number of rides (x)

43.75 total cost (y)

Admission (z)


(b) Linear Equation - 1.25x + z = y


(c) Well you need to calculate the totaly number of rides that person took and add that to the admission cost.


8 0
3 years ago
A jumper in the long-jump goes into the jump with a speed of 12 m/s at an angle of 20° above the horizontal. How far does the ju
weeeeeb [17]

Answer:

x = 9.5 m

Step-by-step explanation:

Given:

This problem is based on 2D motion kinematics equations:

V_0 = 12 m/s

\theta = 20^0

g=9.8 m/s^2

At maximum height:

V_y = 0

Components of initial velocity:

V_0x = V_0 cos (\theta) =(12 )(cos (20^0)) = 11.3 m/s

V_0x = V_0 sin (\theta) = (12)(sin (20^0)) = 4.10 m/s

To find time to reach maximum height:

V_y = V_0y -gt

Plugging in the known values:

0 = 4.10 - 9.8t

t = \frac{-4.10}{-9.8}

t = 0.418 s

Total time = 2t = 2(0.418) = 0.836 s

to find horizontal distance covered:

x = (V_0x)(t)\\x = (11.3)(0.836)\\x = 9.5 m

8 0
3 years ago
12 = x • 3<br><br> How to solve?
liberstina [14]
The value of x is 4
so it says that 3 times __ equals 12.
so that means that u have to do 12/3 Wi-Fi i equals 4, so that is how u do it

hope this helps!!
8 0
2 years ago
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