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Zina [86]
1 year ago
9

Does meditation cure insomnia? Researchers randomly divided 400 people into two equal- sized groups. One group meditated daily f

or 30 minutes, the other group attended a 2-hour information session on insomnia. At the beginning of the study, the average difference between the number of minutes slept between the two groups was about 0. After the study, the average difference was about 32 minutes, and the meditation group had a higher average number of minutes slept. To test whether an average difference of 32 minutes could be attributed to chance, a statistics student decided to conduct a randomization test. She wrote the number of minutes slept by each subject in the study on an index card. She shuffled the cards together very well, and then dealt them into two equal-sized groups. Which of the following best describes the outcome?
Mathematics
1 answer:
Olin [163]1 year ago
4 0

Answer:

this is very long be shot question

Step-by-step explanation:

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The conditional relative frequency table was generated using data that compared a student’s grade level and whether or not they
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D. 0.57

Step-by-step explanation:

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Find the solution to each of these recurrence relations and initial conditions. use an iterative approach such as that used in e
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2 years ago
A 22.5 ounce candle burns at the rate of one ounce every 5 hours. write an equation for the amount of candle left
maks197457 [2]

Answer:

y = 22.5 - 0.2t

Step-by-step explanation:

Given;

total number of candle, n = 22.5 ounce

Rate of candle burn, R = 1 ounce per 5 hours  = \frac{1 \ ounce}{5 \ hours} = 0.2 \ \frac{ounce}{hour}

The amount of candle left = total initial value - amount burnt

let the amount let = y

y = 22.5 - 0.2t

where;

t is the time in which the candle is burnt

Thus, the equation for the amount of candle left is given by;

y = 22.5 - 0.2t

7 0
1 year ago
Harriet earns the same amount of money each day. Her gross pay at the end of 7 workdays is 35h+56 dollars.which expression repre
statuscvo [17]

The expression 5h+8 represents Harriet's gross pay each day.

Step-by-step explanation:

Given,

Gross pay of Harriet = 35h + 56

This expression represent Harriet's pay for 7 day.

Harriet's gross pay per day = \frac{Gross\ pay}{Number\ of\ days}

Harriet's gross pay per day = \frac{35h+56}{7}

Harriet's gross pay per day = \frac{35h}{7}+\frac{56}{7}

Harriet's gross pay per day = 5h+8

The expression 5h+8 represents Harriet's gross pay each day.

Keywords: division, addition

Learn more about division at:

  • brainly.com/question/106975
  • brainly.com/question/10712420

#LearnwithBrainly

4 0
2 years ago
What's the unit rate 975 revolutions in 3 mins​
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Answer:

325 rpm's

Step-by-step explanation:

975 revolutions in 3 minutes

divide 975 by 3 to get the number of revolutions per minute (rpm)

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