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Exam (elaborations)

BST 322 Week 2 Exam with accurate detailed answers

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BST 322 Week 2 Exam with accurate detailed answers

Institution
BST 322
Course
BST 322

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BST 322 Week 2 Exam with accurate detailed answers ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




Sampling error - correct answer✔✔Error in a statistical analysis arising from the ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




unrepresentativeness of the sample taken. Reflects the tendency for statistics to fluctuate ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




from one sample to another. ||/|\||| ||/|\||| ||/|\||| ||/|\|||




Sampling distribution - correct answer✔✔Are actually probability distributions, is central to ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




estimates of sampling error.
||/|\||| ||/|\||| ||/|\||| ||/|\|||




Sampling distribution of the mean - correct answer✔✔A theoretical probability distribution ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




of the means of an infinite number of samples given size from a population.
||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




Standard error of the mean - correct answer✔✔The standard deviation of the sampling ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




distribution of the sample mean. ||/|\||| ||/|\||| ||/|\||| ||/|\|||




Point estimation - correct answer✔✔Involves calculating a single statistics to estimate the
||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




parameter.



Confidence interval - correct answer✔✔Result adjusted by adding and subtracting the ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




margin of error ||/|\||| ||/|\|||




Null hypothesis - correct answer✔✔The hypothesis that there is no significant difference
||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




between specified populations, any observed difference being due to sampling or ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||




experimental error. ||/|\|||




Alternate hypothesis - correct answer✔✔ ||/|\||| ||/|\||| ||/|\||| ||/|\|||




Type I error - correct answer✔✔false positive
||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\||| ||/|\|||

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Institution
BST 322
Course
BST 322

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