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2 years ago

I don't know how to solve questions like this. k-10=-7

2 answers:

7 0

You have to add 10 to both sides of the equation because you want to have your variable (in this case it's K) to be on it's own. K=-7+10 or K=10-7 Then you subtract 7 from 10 and you get k=3. Let me know if you don't understand.

kirill115 [55]2 years ago

5 0

K-10=-7

K=10-7 Add 7 for both side.

k=3

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<h3>What are the hypothesis tested?</h3>

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For each sample, we have that:

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$\mu_B = 74, s_B = \frac{4}{\sqrt{100}} = 0.4$

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It is given by:

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Since the p-value is less than the significance level of 0.05, it is found that there is a significant difference between the wait times for the two populations.

More can be learned about the t-distribution at brainly.com/question/16313918

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