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3 years ago

(only do #3 please) It's due 11:59 PM! Please solve!!!

Mathematics

1 answer:

alexgriva [62]3 years ago

8 0

Answer:

y = -3/2x + 3

Step-by-step explanation:

First, know that slope-intercept form is y = mx + b. Since our y-intercept is 3, we can plug that in for B, and since the slope goes down 3 and over to the right 2, it is -3/2. So, when everything's plugged in, we get y = -3/2x + 3.

I hope this helped! Please leave Brainliest if it did.

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Complete Question

The complete question is shown on the first uploaded image

Answer:

the null hypothesis is $H_o : \mu = 122$

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Step-by-step explanation:

From the question we are told that

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The standard deviation is $\sigma = 21$

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the alternative hypothesis is $H_a : \mu \ne 122$

Generally the test statistics is mathematically evaluated as

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$t = - 1.761$

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$p = P(Z < t )$

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