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leonid [27]
3 years ago
15

A psychologist investigates the effect of instructions on the time required to solve a puzzle. 20 subjects are given the same pu

zzle and are randomly assigned to receive two different sets of instructions prior to the task. One group is told that the task is difficult and the other group is told that the task is easy. What test should be used to see if there are differences between the two groups with regards to the time it takes to solve the puzzle?
a. Z-Test
b. T-Test for One Sample
c. T-Test for Independent Samples
d. One Variable Chi Square
e. One-Way ANOVA
Mathematics
1 answer:
Lerok [7]3 years ago
8 0
B. t- test for one sample

hehehehehehhee
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Use the equation p=10j to find the value of p when j=6.
lyudmila [28]

Answer:

p=60

Step-by-step explanation:

10(6)=60

p=60

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7 0
3 years ago
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The length of a side of a cube can be determinad
erik [133]

Answer:

4 cm

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Step-by-step explanation:

∛64 = 4

proof:

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(0,1), (1,5),(2,9), (3,13),(4,17)<br> Figure out the rule for x
Julli [10]

Answer:

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8 0
3 years ago
What is 8.7 divided by 53.07 step by step?
tresset_1 [31]

Shift the decimal points of both 8.7 and 53.07 to the right by 2 decimal places.

(This is needed to convert 53.07 to 5307, since long division must divide by a whole number.)

870/5307

Set up the long division.

5307|870

Therefore your answer should be 0.1639.

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6 0
3 years ago
A pole-vaulter uses a 15-foot-long pile. She grips the pole so that the segment below her left hand is twice the length of the s
Shalnov [3]
Let x + 1.5 be length of segment above left hand
Let 2x be length of segment below left hand

15 = x + 1.5 + 2x
15 = 3x + 1.5
15 - 1.5 = 3x
13.5 = 3x
13.5/3= 3x/3 
4.5 = x
x = 4.5
This is the length above the left hand. 

2x must be then 4.5*2 = 9 foot
This is the length below the left hand. 

Checking
4.5 + 9 + 1.5 = 15 foot 

Adding length below left hand & length of left hand to right hand:
9 + 1.5 = 10.5
The right hand is hence 10.5 foot far up the pole.
6 0
3 years ago
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