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HACTEHA [7]
3 years ago
8

You compare the happiness of people forced to smile with those of people forced to frown. Both groups have the same number of pa

rticipants. The mean happiness level in the smile group is 20. The mean happiness level in the frown group is 19. The standard deviation of both groups is 20. The effect size is:_________
Mathematics
1 answer:
gregori [183]3 years ago
3 0

Answer:

0.05

Step-by-step explanation:

The Effect size  = (Difference in Means) / (Standard deviation)

= (20 - 19) / 20

= 1/20

= 0.05

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samuel fell asleep after they had travelled 90 miles. if the total length of the trip was 600 miles, what percentage of the tota
natali 33 [55]
<h2>Answer:</h2><h2>Samuel fell asleep after travelling 90 miles which is 15%of their total trip distance.</h2>

Step-by-step explanation:

The total length of the trip = 600 miles

Samuel fell asleep after they had travelled  = 90 miles

Percentage of the total trip travelled when samuel fell asleep = \frac{90}{600} (100)

= 15%

Samuel fell asleep after travelling 90 miles which is 15%of their total trip distance.

5 0
3 years ago
Write the equation in slope intercept form.
astraxan [27]

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5 0
3 years ago
Read 2 more answers
What is a prime or composite number?
melomori [17]
-A prime number is a whole numbergreater than 1, whose only two whole-number factors are 1 and itself. The first few prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, and 29.

- A whole number that can be divided evenly by numbers other than 1 or itself. Example: 9 can be divided evenly by 3 (as well as 1 and 9), so 9 is acomposite number. But 7 cannot be divided evenly (except by 1 and 7), so is NOT a composite number (it is a prime number).
6 0
3 years ago
Ryan is building a deck he want the length to be 10 feet and the width to be 5 feet wide what is the area of the deck Ryan is bu
KIM [24]

Answer:

I think the área is 50

Step-by-step explanation:

because 10x5=50

4 0
3 years ago
suppose there is a 1.1 degree F drop in temperature every thousand feet that an airplane climbs into the sky. if the temp on the
Aleks04 [339]

For this case, the first thing we must do is define variables.

We have then:

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y = - \frac{1.1}{1000} (11000) +59.7

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Answer:

the temperature at an altitude of 11,000 ft is 47.6 F

4 0
3 years ago
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