sd n margin of error t 2 sd n interval estimate d t

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Unformatted text preview: sd n Point estimate is the sample mean of the difference Statistical Inference about the Difference between Two Population Means: Matched Samples Difference Between Population Means μd point estimator d standard error Hypothesis Tests parameter σd = sd n margin of error tα 2 sd n interval estimate d ± tα 2 degrees of freedom n1 − sd n Standard error based on the standard deviation of the differences Statistical Inference about the Difference between Two Population Means: Matched Samples Difference Between Population Means μd point estimator d standard error Hypothesis Tests parameter σd = sd n margin of error tα 2 sd n interval estimate d ± tα 2 degrees of freedom n1 − sd n Margin of error and Interval Estimate based on point estimate, standard error, and t-distribution Statistical Inference about the Difference between Two Population Means: Matched Samples Difference Between Population Means μd point estimator d standard error Hypothesis Tests parameter σd = sd n margin of error tα 2 sd n interval estimate d ± tα 2 degrees of freedom n1 − sd n Degrees of freedom is based on the number of differences Example Hypothesis Tests A Winnipeg based company has documents that must be quickly distributed to district offices throughout Canada. The firm must decide between two delivery services, UPX and INTEX, to transport its documents. How can...
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This document was uploaded on 03/05/2014.

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