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lana [24]
3 years ago
5

For a hypothesis test of H0: p = 0.35 against the alternative Ha: p > 0.35, the z test statistic is found to be 2.45. What ca

n be said about this finding?
Mathematics
1 answer:
Marat540 [252]3 years ago
5 0

Answer:

From this finding, it can be said that the sample proportion is greater than the population proportion because the test statistic (z = 2.45) is positive.

Step-by-step explanation:

H0: p = 0.35

Ha: p > 0.35

The test is a one-tailed test because the alternate hypothesis is expressed using greater than.

The test statistic (z) for a proportion is given as (p' - p) ÷ sqrt [p(1-p)/n]

p' is sample proportion

p is population proportion

n is sample size

For the test statistic z to be positive, p' must be greater than p.

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pashok25 [27]

Solution:

we have been asked to find the product of (x+y+3)(x+y-4).

we will multiply term by term as below

(x+y+3)(x+y-4)=x(x+y+3)+y(x+y+3)-4(x+y+3)\\\\\ (x+y+3)(x+y-4)=x^2+xy+3x+xy+y^2+3y-4x-4y-12\\\\\text{Now take the like terms together and simplify we get}\\\\(x+y+3)(x+y-4)=x^2+y^2+2xy-x-y-12\\

Hence the the product of (x+y+3)(x+y-4) is x^2+y^2+2xy-x-y-12


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3 years ago
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The relationship between the two angles in the figure are congruent:)
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Nimfa-mama [501]

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h = -7

Step-by-step explanation:

  1. 8 ÷ 2 = 4
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  3. Subtract 4 from each side, so it now looks like this: -7 = h

I hope this helps!

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I am a multiple of 7 and divisible by 4 if i am less than 30 what number am i?
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Step-by-step explanation:

The multiples of 7 that's less than 30 include: 7, 14 , 21 and 28.

From the numbers above,

7 isn't divisible by 4 as it gives a remainder.

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Therefore, the correct answer should be 28

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