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Nesterboy [21]
3 years ago
10

A researcher interested in the effects of humor on memory randomly assigns 16 participants to either the humor group or the no-h

umor group. The humor group reads humorous sentences and the no-humor group reads non-humorous sentences .On a later memory test, the researcher finds that in terms of the direction of the means, the humor group had better memory than the no-humor group, but this effect was not significant (p = 0.06) What should this researcher do?
a. Because the effect, looks as though it is barely missing significance, she can just treat it as though the effect exists and communicate this exciting effect to her colleagues.
b. She can abandon the study of humor on memory because given her results it is obvious that humor has no effect on memory.
c. She can attempt to increase her statistical power by using a two-tailed hypothesis test rather than a one-tailed hypothesis test.
d. Because the effect looks as though it is barely missing significance, and her sample size is fairly small, she can increase her sample size to increase her statistical power to detect the effect.
Mathematics
1 answer:
masha68 [24]3 years ago
3 0

Answer: option c

Step-by-step explanation: with a two-tailed hypothesis she can find the way to go deep on the study, she will be able to increase the statistical power. She will be able to separate in specifics groups.

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A rectangular pyramid has a length of 14 centimeters, a width of 9 centimeters, and a height of 10 centimeters. explain the effe
klemol [59]
The volume of a rectangular pyramid = 1/3 ×Area×height
=1/3×L×W×H
if the dimensions were doubled
therefore,
V=1/3 × (9×2)×(14×2)×(10×2)
=1/3×18×28×20
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3 0
3 years ago
if P(x)=1+6x-5x^2 represents the profit in selling x thousand Boombotix speakers, how many speakers should be sold to maximize p
Rashid [163]

Answer:

600

Step-by-step explanation:

p(x) = 1 + 6x - 5x^2

x max = -b/2a

a = -5

b = 6

-6/2(-5) = 6/10 = 3/5 = .6

.6 thousand = 600

600 speakers should be sold.

Alternatively, you can check the vertex of the parabola formed.

8 0
2 years ago
If you can help please do! Thank you!
Aleks [24]

Answer:

see explanation

Step-by-step explanation:

The diagonals of a parallelogram bisect each other , then

CO = OA = b

DO = OB = a

(a)

CA = CO + OA = b + b = 2b

(b)

DC = DO + OC = a - b

(c)

CB = CO + OB = b + a = a + b

7 0
2 years ago
If x^2+y^2=73 and xy=24, what is the value of (x+y)^2? And Why?
nydimaria [60]
(x+y)^2=x^2+y^2+2xy=73+2*24=73+48=121

⇒ (x+y)^2=121
7 0
3 years ago
Find the median and mean of the data set below 19,12,44,15,44​
vekshin1

Answer:

median =19

mean=26.8

Step-by-step explanation:

<u>-MEDIAN</u> is the middle number when arranged in ascending order

-MEAN is the sum (total) of all values set devided by the number of values on the list

4 0
3 years ago
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