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In an essay of 250-500 words, thoroughly address the following items and respond to the related questions: Define the term standard deviation. Why is it important to know the standard deviation for a given sample? What do researchers learn about a normal distribution from knowledge of the standard deviation? A sample of n=20 has a mean of M = 40. If the standard deviation is s=5, would a score of X= 55 be considered an extreme value? Why or why not? Hypothesis testing allows researchers to use sample data, taken from a larger population, to draw inferences (i.e., conclusions) about the population from which the sample came. Hypothesis testing is one of the most commonly used inferential procedures. Define and thoroughly explain the terms null hypothesis and alternative hypothesis. How are they used in hypothesis testing? Define the term standard error. Why is the standard error important in research using sample distributions? Consider the following scenario: A random sample obtained from a population has a mean of µ=100 and a standard deviation of σ = 20. The error between the sample mean and the population mean for a sample of n = 16 is 5 points and the error between a sample men and population mean for a sample of n = 100 is 2 points. Explain the difference in the standard error for the two samples.
150 words answer both questionsdiscussion topic 1 the 1960s represented an era of significant economic growth for
Demonstrate the interdependence of all the areas of developmen
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Apatite, Ca5(PO4)3(OH), belongs to a mineral group with a wide variety of end-members whose formulas can be generalized as follows: A5(BO4)3(C). What element substitutions might occur for Ca in the A site?
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The autonomic nervous system (ANS) forms part of the peripheral nervous system. It controls a number of involuntary actions such as heart rate, digestion, breathing, and perspiration. The ANS consists of the sympathetic nervous system, which is..
question 1.name the bony structure through which each spinal nerve passes.question 2.which terminal branch of the
in your own words discuss why meteors so often appear in showers rather than individually. in other words why do we see
your organization has a goal of 14 days for the average processing of a purchase request pr from notification to final
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