L-28l - l-1l how do we do this? (I would be happy if you explain)

1 answer:

6 0

The lines on the sides are absolute value, anything inside those two lines is always going to change to a positive. In this case |-28| would be 28 and |-1| would be 1. 28-1 is 27. Hope this helps :)

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Ierofanga [76]

Answer:

Step-by-step explanation:

To Test :-

H0 :- P = 0.12

H1 :- P ≠ 0.12

P = X / n = 156/800 = 0.195

Test Statistic :-

Z = ( P - P0 ) / ( √((P0 * q0)/n)

Z = ( 0.195 - 0.12 ) / ( √(( 0.12 * 0.88) /800))

Z = 6.5279

Test Criteria :-

Reject null hypothesis if Z > Z(α/2)

Z(α/2) = Z(0.05/2) = 1.96

Z > Z(α/2) = 6.5279 > 1.96, hence we reject the null hypothesis

Conclusion :- We Reject H0

There is sufficient evidence to support the claim that there is a difference.

7 0

4 years ago

Can someone find the volume for me pls

creativ13 [48]

V = l x w x h

16.8 x 12 = 201.6 x 19.3 = 3890.88

Brainliest if it is correct please!

4 0

3 years ago

How do i solve the question in the image provided ?

Mars2501 [29]

Answer:

0.19+0.46i and 0.19-0.46i

Step-by-step explanation:

$\neq (-b+\sqrt{b^2-4ac} )/2a\\and\\(-b-\sqrt{b^2-4ac} )/2a\\\\a=8\\b=3\\c=2\\(-3+\sqrt{3^2-4*8*2} )/(2*8)\\= - 0.1875+0.463512i\\(-3-\sqrt{3^2-4*8*2} )/(2*8) = -0.1875-0.463512i$