2 years ago

Does anyone wnna talk? il give points and brainliest.

Mathematics

1 answer:

Rasek [7]2 years ago

4 0

Answer:

sure, can i have braniest

Step-by-step explanation:

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10 times 7 thousands in unit form

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10 times 7 thousands in unit form would end up to be 70,000 because 10x7,000 if you carry out the zero one place would be 70,00

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Answer:

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Step-by-step explanation:

Find f(0) = (3(0)-7)/4 = -7/4

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4 years ago

Theo and Kade worked on a school project together. Theo worked on the project 3 fewer hours than Kade did. Altogether, they work

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3 years ago

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Over the past several years, the proportion of one-person households has been increasing. The Census Bureau would like to test t

Ganezh [65]

Answer: z =2.39

Step-by-step explanation:

Given :

$H_0: p \leq0.23\\\\ H_a: p > 0.23$

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i.e. Sample size : n= 136

Sample proportion : $\hat{p}=\dfrac{43}{136}=0.316176470588\approx0.3162$

Test statistic for proportion :-

$z=\dfrac{\hat{p}-p}{\sqrt{\dfrac{p(1-p)}{n}}}$

$\Rightarrow z=\dfrac{0.3162-0.23}{\sqrt{\dfrac{0.23(1-0.23)}{136}}}\\\\\Rightarrow\ z=\dfrac{0.0862}{\sqrt{0.00130220588235}}\\\\\Rightarrow\ z=\dfrac{0.0862}{0.0360860898734}\\\\=2.38873206552\approx2.39$

Hence, the value of the test statistic: z =2.39

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3 years ago