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deff fn [24]
2 years ago
13

WILL MARK BRAINLYIST

Mathematics
1 answer:
Maslowich2 years ago
3 0
The first answer A !
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D is the correct answer
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Change 0.1 to mixed number​
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Find the average of the following numbers: <br> 2,4,6 and 8. <br><br> Pls help asap
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UNO [17]

Answer:

a. We fail reject to the null hypothesis because zo = -5.84 < 1.65 = zα and P-value = 1 (approximately)

b. The confidence Interval for u1 - u2 is; 6.79 ≤ u1 - u2

c. The power of the test = 1 -

β = 0.998736

d. The sample size is adequate because the power of the test is approximately 1

Step-by-step explanation:

Given

Standard Deviations; σ1 = σ2 = 1.0 psi

Size: n1 = 10; n2 = 12

X = 162.5; Y = 155.0

Let X1, X2....Xn be a random sample from Population 1

Let Y1, Y2....Yn be a random sample from Population 2

We assume that both population are normal and the two are independent.

Therefore, the test statistic

Z = (X - Y - (u1 - u2))/√(σ1²/n1 + σ2²/n2)

See attachment for explanation

8 0
3 years ago
Can't solve this problem. Need help
nata0808 [166]
0T= area of the square-(15*4)
=we will get the area of circle
area of circle=pi*r(square)
here r square is not there
and area is there
so the equation will be like this
r(square)=7*the area of circle \ 22
so the answer you can find
I am little busy right now
5 0
3 years ago
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