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What strategy to use

Mathematics

1 answer:

Dennis_Churaev [7]2 years ago

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2 years ago

Simplify 22 – 5(2x + 4).

Georgia [21]

Answer:

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Step-by-step explanation:

22-5(2x+4)

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3 years ago

A study claims that the mean age of online dating service users is 40 years. Some researchers think this is not accurate and wan

Mademuasel [1]

Answer: $H_0:\mu=40$

$H_0:\neq40$

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.