Study Guide for exam 3 pt 2
Study Guide for exam 3 pt 2 STAT 110 - 002
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This 0 page Study Guide was uploaded by Mackenzie Shapiro on Friday November 20, 2015. The Study Guide belongs to STAT 110 - 002 at University of South Carolina taught by Gail Ward-Besser (P) in Fall 2015. Since its upload, it has received 53 views. For similar materials see Introduction to Statistical Reasoning in Statistics at University of South Carolina.
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Date Created: 11/20/15
N 39 10 11 A histogram is designed to summarize a Total area under a density curve is always equal to For a normal distribution Two events are Stat Study Guide Exam 3 part 2 of data a 100 b 12 c 1 d depends on the curve of the data will fall within one standard deviation of the mean Standard score equals a observationmeanstandard deviation b meanobservationstandard deviation c Standard deviationmeanobservation d meanstandard deviationobservation A probability is a number between a 0 and 100 b 0 and 1000 c 0 and 1 d any number if they have no outcomes in common a valid b mutually exclusive c dependent d mutually dependent True or False The expected value may not be one of the possible values The law of large numbers says that if a random phenomenon is repeated many times the of these many outcomes will be close to the expected value of the phenomenon a Median b Mean c Sample mean d Sample median A is a number that summarizes something about a population a Parameter b Statistic c lnterval d None of the above True or false The central limit theorem tells us that when the sample size n is reasonably small the sampling distribution of x is approximately normal The as a percentage is always 100 minus the corresponding con dence level a Con dence interval b Mean c Signi cance level d Proportion 12 True or false The alternative hypothesis always has an equal sngn 13 The null hypothesis and alternative hypothesis are always statements about a a Statistic b Parameter c Mean d Proportion 14 Statistically signi cant means a Unlikely to have occurred by chance b Likely to have occurred by chance c Practically important d Practically unimportant 15 A scatterplot is a graph that shows the correlation between data a Qualitative b Quantitative Answer key Sample 1 68 Hpmwewewwe 039 0 false The central limit theorem tells us that when the sample size n is reasonably LARGE the sampling distribution of x is approximately normal 11 c 12 false the null hypothesis has the equal sign 13 b 14 a 15 b
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