KINE 2050 Chapter Notes - Chapter 8: Background Noise, Repeated Measures Design, Motor Coordination
26 Mar 2017
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8. 2 the t statistic and t distribution. T-statistic: when is unknown so is used instead to find z-score, in this case called the t-score. (population standard deviation is unknown so sample standard deviation is used instead: e. g. , In this case, the t-score at p = 0. 05 will be the same cut off as the z-score at 95% (which is 1. 96) *t-scores and z-scores are not the exact same, yet, they have the same general curve provide very similar information* E. g. , if confidence interval is +/- 2. 145, it means that there is a 5% chance that a value amongst your results are above or below +/-2. 145. 8. 3 confidence intervals for the population mean. Confidence interval has a specified probability of containing the unknown population mean. If population mean length is known, then sample mean can be converted into a t value o.
