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3 years ago

10

12 minus b=-2 solve for b

2 answers:

ycow [4]3 years ago

5 0

12 - b = -2
12 + 2 = b
14 = b

Vika [28.1K]3 years ago

5 0

Answer:

$\: \: \: \: \: \: 12 - b = - 2 \\ = > - b = - 2 - 12 \\ = > - b = - 14 \\ = > b = 14$

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Step-by-step explanation:

A null hypothesis is a hypothesis where a researcher generally try to disprove, it says that there is no statistically significant relationship between the two variables .
An alternative hypothesis says that there is a statistical significance between two variables.

Claim 1. : Mean age of online dating service users is 40 years.

i.e. $\mu=40$ , since it has equals sign so we take this as null hypothesis.

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$\mu\neq40$

⇒ Null Hypothesis : $H_0:\mu=40$

Alternative hypothesis : $H_0:\neq40$

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