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Aliun [14]
3 years ago
15

Guys Ik it’s cut but you can still understand it. I don’t know how to do this percentage. Help!

Mathematics
1 answer:
stepladder [879]3 years ago
8 0

Answer:

THANK CORRECT

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Answer: the answer is d

Step-by-step explanation: if the sign is like this > the arrow moves to the right and if its like < its to the left.

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3 years ago
A study investigated the effectiveness of meditation training in reducing trait anxiety. The study evaluated subjects trait anxi
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Answer:

The 99% confidence interval for the population mean reduction in anxiety was (1.2, 8.6).

Step-by-step explanation:

We have the standard deviation for the sample, which means that the t-distribution is used to solve this question.

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df = 27 - 1 = 26

99% confidence interval

Now, we have to find a value of T, which is found looking at the t table, with 26 degrees of freedom(y-axis) and a confidence level of 1 - \frac{1 - 0.99}{2} = 0.995. So we have T = 2.7787.

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In which s is the standard deviation of the sample and n is the size of the sample.

The lower end of the interval is the sample mean subtracted by M. So it is 4.9 - 3.7 = 1.2.

The upper end of the interval is the sample mean added to M. So it is 4.9 + 3.7 = 8.6.

The 99% confidence interval for the population mean reduction in anxiety was (1.2, 8.6).

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The best and most correct answer among the choices provided by your question is none of the above.
<span>
The formula for π (pi) of the circle in terms of the circumference and radius is: Pi = C/2r.</span>


I hope my answer has come to your help. Thank you for posting your question here in Brainly. We hope to answer more of your questions and inquiries soon. Have a nice day ahead!
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