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dolphi86 [110]
3 years ago
8

I don't really know how to start

Mathematics
2 answers:
patriot [66]3 years ago
6 0
4v/27 = 16
You have to get rid of the 27 in the denominator, do so by multiplying both sides by the 27.
Now you have:
4v = 432
Next you need to get rid of the 4 by dividing both sides by 4
Your answer is now:
v = 108
Art [367]3 years ago
5 0
Answer: v=108

here are the steps:
1. multiply both sides by 27. \frac{4v}{27} x 27 = 16 x 27
2. refine. 4v = 432
3. divide both sides by 4. \frac{4v}{4} = \frac{432}{4}
4. refine. v = 108
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20m

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A statistics teacher taught a large introductory statistics class, with 500 students having enrolled over many years. The mean s
soldi70 [24.7K]

Answer:

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Based on this the correct system of hypothesis are:

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Alternative hypothesis: \mu >78

And the best option for this case is:

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Step-by-step explanation:

For this case we have the following previous info given:

\mu = 78 represent the true mean

\sigma =10 represent the true deviation

The teacher select a sample of n =15 students.  And he wanted to know if teaching a smaller class was more effective and students performed better, that means if \mu >78 and he obtaind a sample mean of \bar X>83.

Based on this the correct system of hypothesis are:

Null hypothesis: \mu =78

Alternative hypothesis: \mu >78

And the best option for this case is:

a. H0:\mu=78 vs. H1:\mu>78 .

5 0
3 years ago
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than we consider it without pi so result choice A. is right sure

hope helped

Pls mark me brainiest

5 0
2 years ago
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