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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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Step-by-step explanation:

     9         8       1

Hundred tens one

The question is asking for to round to the nearest hundred (100) which means is rounding to [9] in this question.

The number of the place before the hundreds place is [8] on the tens place.

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[8] is greater than 5, so you round 9 up. When rounding 9 up, you get 10.

<h2>So, the final number will be 1000</h2>
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