not use ai please In a psychological study of short-term memory, irrelevant speech effects refer to the degree to which the memorization process is impaired byirrelevant background speech. An analysis of irrelevant speech effects was carried out and published. Subjects performed the memorization taskunder two conditions: (1) with irrelevant background speech and (2) in silence. The difference in the error rates for the two conditions-called therelative difference in error rate (RDER)-was computed for each subject. A histogram summarizing the RDER values for the subjects is displayedbelow.Frequency20116-12<Prev0--7515 105 195 285RDER ValueStep 2 of 2: Estimate the proportion of RDER values that lie within three standard deviations of the mean.Nex

The histogram shows the results of a memory experiment where the difference in error rates (RDER)…

Answered: In a psychological study of short-term…

ENGR.ECONOMIC ANALYSIS

14th Edition

ISBN:9780190931919

Author:NEWNAN

Publisher:NEWNAN

Chapter1: Making Economics Decisions

Section: Chapter Questions

Problem 1QTC

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Note:- Do not provide handwritten solution. Maintain accuracy and quality in your answer. Take care of plagiarism. Answer completely. You will get up vote for sure.
Researchers conducted a prospective cohort study to assess the association between dietary supplements and cognitive ability among children. A total of 500 children age 12-17 years who take an omega-3 fatty acid supplement are compared with 500 children age 12-17 years who do not take an omega-3 fatty acid supplement. Researchers follow the children for 2 years. During this time, 300 children who take the supplement earn what is classified as a “high” score on a cognitive test while 200 children who do not take the supplement earn what is classified as a “high” score on the same cognitive test. Show calculations. a) Construct a 2x2 table from the information presented above b) The risk difference is:
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