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qdfefef

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Did Khan Academy on 4 Sept, when I saw this question:

84 is what percent of 400?
Answer: 21 ( WTF?!? )

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I was doing Khan Academy on 4 Sept, when I saw this question:

Researchers were interested in assessing the effect of meditation on work stress. They randomly assigned 200 full-time employees to two groups. One group was instructed to meditate 10-20 minutes twice per day, and to participate in weekly 1-hour sessions, while the other group wasn't given any special instructions.

Just before the randomization and also after a period of 8 weeks, all participants were required to fill out the Psychological Strain Questionnaire (PSQ), an accepted measure of work stress. The researchers calculated the difference in questionnaire scores for all participants, where a positive change corresponds to a reduction in work stress. Then, they compared the average differences of each group.

What type of a statistical study did the researchers use?

Choose 1 answer:

Choose 1 answer:

A.Sample study

B.Experiment

C. Observational study

The researchers found that the mean change in PSQ scores of the group who meditated is 21 ( the f***!?! ) points greater than the mean change in PSQ scores of the group who didn’t. Based on some re-randomization simulations, they concluded that the result is significant and not due to the randomization of the groups.

What valid conclusions can be made from this result?

Mark the most suitable choice.

Choose 1 answer:

A. The result suggests a positive correlation between meditation and work stress reduction.

B. Meditation reduces work stress.

C. The result suggests that meditation can reduce work stress.

D. The result suggests that meditation can reduce stress.

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At least check your sentence before saying something mean. It's 'life', not 'live' and also add proper punctuation. You go to school, don't you?

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KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH
KJ IS BAD FOR HEALTH

JK

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bye
DIE
laosai , outside GO GET A LIVE B****

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hHIHIHIHIHIHIH

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uh ok

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Padlet for the whole class.
Rules:
1.Don't be rude
2.No vulgar words
3.Be Kind
Any one who disobey the rules will be kicked out