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3 years ago

14

What is the answer please help no links I will report

2 answers:

Hoochie [10]3 years ago

3 0

Answer:

links.

Step-by-step explanation:

jek_recluse [69]3 years ago

3 0

Answer:

the answer is essentially A

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andrezito [222]

Answer:

see explanation

Step-by-step explanation:

Calculate C by adding corresponding components of A + B

C = $\left[\begin{array}{ccc}4\\-7.5\\\end{array}\right]$ + $\left[\begin{array}{ccc}-2.5\\5\\\end{array}\right]$

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yanalaym [24]

Answer:

A sample size of 183 is needed.

Step-by-step explanation:

We have that to find our $\alpha$ level, that is the subtraction of 1 by the confidence interval divided by 2. So:

$\alpha = \frac{1 - 0.97}{2} = 0.015$

Now, we have to find z in the Ztable as such z has a pvalue of $1 - \alpha$ .

That is z with a pvalue of $1 - 0.015 = 0.985$ , so Z = 2.17.

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