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Vesna [10]
3 years ago
12

A scientist wants to make certain the results of her experiment are accurate. She has repeated the procedure numerous times and

recorded her results. In addition, she reviewed her interpretation of the data, which she found to make sense. What should be the next step to insure her results are valid?

SAT
1 answer:
Romashka [77]3 years ago
8 0

The correct answer is D. Have other scientists repeat the procedure and obtain the same results.

Explanation:

One of the most accurate ways to validate the results of an experiment is to allow peers (other scientists) to review the experiment and repeat it, which is known as replication. This process is required to make sure the results are accurate because if the experiment is repeated by a different scientist and the results are different this shows the data is not consistent and therefore the results are invalid. Moreover, inconsistency or lack of replication can occur due to incorrect processes or bias by the scientist.

According to this, the next step in this situation is to "have other scientists repeat the procedure and obtain the same results".On the other hand, repeating the experiment but changing one of the variables or the procedures is not a correct step because this will change the essence of the experiment and lead to different results.

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C. He defeated the Axis armies of Italy and Germany at El Alamein, Egypt.


D. He defeated the German army at the Battle of the Bulge.

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Can Edge nuity see if you open other tabs
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A global resources company uses data-intensive, cloud-based simulation software, but users in remote locations find that the res
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The type of technology illustrated in the given example is called; Edge Computing

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One tool that might help a student decide on a major is A. a career assessment OB. the ACT C. the SAT O D. the NCAA test​
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A high school track coach has just purchased a new stopwatch that has an uncertainty of s. runners on the team regularly complet
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A high school track coach has just purchased a new stopwatch. The stopwatch manual states that the stopwatch has an uncertainty of ±0.05 s . Runners on the track coach’s team regularly clock 100-m sprints of 11.49 s to 15.01 s . At the school’s last track meet, the first-place sprinter came in at 12.04 s and the second-place sprinter came in at 12.07 s .

No, the new stop watch will not be effective in timing the sprint team. The reason for the same is that the uncertainty in the stopwatch is too small to effectively differentiate between the sprint times.

If sprinters were timed with the new stopwatch, first sprinter's time would have been between =  12.04 - 0.05  and 12.04 + 0.05

                                  = 11.99 and 12.09

or between the interval [11.99 , 12.09]

while the second sprinter's time would have been between

= 12.07 - 0.05 =and 12.07 + 0.05

= 12.02  and 12.12

or between the interval [12.0.2 , 12.12]

Hence, there is an overlap between the worst time of the first sprinter, that is, 11.99 and the best time of the second sprinter, that is, 12.02

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