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zlopas [31]
4 years ago
14

Every time you and your friend study for an exam while listening to classical music, both of you do well on the exam. What testa

ble hypothesis can you develop from your observations?
Biology
1 answer:
777dan777 [17]4 years ago
3 0

Answer:

Development of testable hypothesis from observation

                                     According to one theory “listening to Mozart music induce short improvement in certain kinds of cognitive task”.  Study have shown a proposed link in improving the reasoning and visualization of students during examination in the presence of classical music. It means there is relationship between classical music and man hormonal system. Therefore, listening to classical music raise dopamine and treating depression level. It leads to better performance in examination.  

                                 Silveraja et al. (2015) studied the effect of classical music on examination performance while students solving their papers in examination hall. He concluded that in the presence of music the performance was better.



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Explanation:

Given :  The red blood cell counts of women are normally distributed with

\mu=4.577\text{ million cells per microliter}

\sigma=0.382\text{ million cells per microliter}

Let X be the random variable that represents the red blood cell counts of randomly selected woman.

Z-score : z=\dfrac{X-\mu}{\sigma}

For X=4.2

z=\dfrac{4.2-4.577}{0.382}\approx-0.99

For X=5.4

z=\dfrac{5.4-4.577}{0.382}\approx2.1544

Now, the probability that the women have red blood cell counts in the normal range from 4.2 to 5.4 million cells per​ microliter will be :-

P(4.2

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