3 years ago

What is the basis of statistical inference

1 answer:

3 0

Answer:

Statistical inference is the process of using data analysis to deduce properties of an underlying probability distribution. Inferential statistical analysis infers properties of a population, for example by testing hypotheses and deriving estimates.

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8. The distance formula is d=rt,

WITCHER [35]

252=45h
h=5.6 hours long

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3 years ago

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√(6+x-x²)=9 I have to put this just to submit it.

Sergio [31]

We know that it must equal 9, and that we do x•x-x+6 and find the square root

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3 years ago

Refer to the previous exercise. The researchers wanted a sufficiently large sample to be able to estimate the probability of pre

Maru [420]

Answer:

The large sample n = 117.07

Step-by-step explanation:

Step(i):-

Given that the estimate error (M.E) = 0.08

The proportion (p) = 0.75

q =1-p = 1- 0.75 =0.25

Level of significance = 0.05

Z₀.₀₅ = 1.96≅ 2

Step(ii):-

The Marginal error is determined by

M.E = $\frac{Z_{0.05} \sqrt{p(1-p)} }{\sqrt{n} }$

$0.08 = \frac{2 X \sqrt{0.75(1-0.75)} }{\sqrt{n} }$

Cross multiplication , we get

$\sqrt{n} = \frac{2 X \sqrt{0.75(1-0.75)} }{0.08 }$

√n = $\frac{2 X0.4330}{0.08} = 10.825$

squaring on both sides , we get

n = 117.07

Final answer:-

The large sample n = 117.07

6 0

2 years ago

Find the constant of variation (k) for the inverse variation. Then write an equation for the inverse situation.

notka56 [123]

y = k/x

5 =k/7.5

k = 7.5/*5= 37.5

answer is D

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3 years ago

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What is the value of the expression 24 – (7 + 5) ÷ 6 + 8?

Ierofanga [76]

Answer:

Step-by-step explanation:

following the bodmas rule

we will get the answer 30

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3 years ago

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