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makkiz [27]
3 years ago
5

HELP AGIAN PLEASE THANK YOU AGIAN!!

Mathematics
2 answers:
Zarrin [17]3 years ago
7 0
It would be choice A (seconds) because everyone answers their cell phone within seconds (if they aren't at work or something) but it would be the most resonable answer choice listed!
ziro4ka [17]3 years ago
6 0

<em>A is probably the most reasonable answer, of course it depends what situation you're in.</em>

<em>Logicly speaking, the phone would go to voicemail after about 30 seconds.</em>

<em>Echy~</em>

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A brochure claims that the average maximum height for a certain type of plant is 0.7 m. A gardener suspects that this is not acc
larisa [96]

Answer:

As Z, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.

Step-by-step explanation:

1. Relevant data:

\mu=0.70\\N=40\\\alpha=0.05\\X=0.65\\s=0.20

2. Hypotesis testing

H_{0}=\mu=0.70

H_{1} =\mu< 0.70

3. Find the rejection area

From the one tail standard normal chart, whe have Z-value for \alpha=0.05 is 1.56

Then rejection area is left 1.56 in normal curve.

4. Find the test statistic:

Z=\frac{X-\mu_{0} }{\sigma/\sqrt{n}}

Z=\frac{0.65-0.70}{0.20/\sqrt{40}}\\Z=-1.58

5. Hypotesis Testing

Z_{\alpha}=1.56\\Z=-1.58

-1.58

As Z, it is possible to reject null hypotesis. It means that the local mean height is less tha 0.7 m with a 5% level of significance.

4 0
3 years ago
What's equivalent to 4b
Nostrana [21]

Answer:

4 x 5

Step-by-step explanation:

6 0
2 years ago
HELP :Write the expression as the<br> sine or cosine of an angle.
Reptile [31]

Answer:

sin(4π/21)

Step-by-step explanation:

Step 1: Rearrange expression

sin(π/3)cos(π/7) - cos(π/3)sin(π/7)

Step 2: Use sin(A ± B)

sin(π/3 - π/7)

Step 3: Evaluate

sin(4π/21)

And we have our answer!

5 0
3 years ago
Please Answer ASAP!
natali 33 [55]
Population. Population is the amount of whatever is inisde
4 0
3 years ago
Read 2 more answers
The scatter plot shows the relationship between the test scores of a group of students and the number of hours they spend on soc
Rasek [7]
Hi there!

Part A: Those groups of points that are circled and labeled A are called a correlation. In this case, the group of points represent negative correlation. The point that is labelled B is called an outlier, because it falls outside of the range of the other points. Point B may have been present like that, because while a person may spend a lot of time on social media, they might have understood the information very fast, or maybe they studied a bit on a different occasion.

Part B: Going back to part A, the graph represents a negative correlation. In this case, the more time spent on social media, the lower the test scores.
7 0
3 years ago
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