Liberty University - EDCO 735 / EDCO735 QUIZ 2 6th attempt
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EDCO 735 / EDCO735 QUIZ 2 6th attempt The t distribution and the z distribution are all of the following all of the time except: Correct Answer Platykurtic Correct Answer discovered or d... eveloped by statisticians have values associated with percentiles symmetrical Warner - Section 2.8 - 2.14 In order to calculate variance you must: divide the sum of squared deviations by df divide the sum of scores by df divide the sum of squared deviations by n take the square-root of the sum of squared deviations The t distribution and the z distribution: have values associated with percentiles are skewed are random have 95% confidence level When different sets of data of the same size are randomly chosen from a population, the resulting variation in values is called: sampling error standard deviation magnitude of error confidence interval Question 5 3 / 3 pts What is the formula for the df of a CI? n - 1 M - 1 s - 1 SEM - 1 The t distribution and the z distribution are all of the following all of the time except: normal map to percentiles symmetrical discovered or developed by statisticians N decreases the sampling distribution gets: wider more pointy more leptokurtic more representative Sum of squared deviations: can never be negative can never be zero has no lower limit is divided by the sample size to calculate variance A two-tailed outlier for the t distribution must have a t score equivalent to the: highest 2.5% or lowest 2.5% of the t distribution highest 5% or lowest 5% of the t distribution only the highest 5% of the t distribution only the lowest 5% of the t distribution The standard error is related to all of the following except: causal inference dependent on sample size is smaller with a larger sample involves the confidence interval [Show More]
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