if an independent-measures study uses n = 15 participants in each group to compare two treatment conditions. then 28 is the df value for the t statistic for this study.
The t-statistic, which is used in statistics, measures how far a parameter's estimated value deviates from its hypothesised value relative to its standard error. Through the Student's t-test, it is utilised in hypothesis testing. In a t-test, the t-statistic is used to decide whether to accept or reject the null hypothesis. The t-statistic is used when the sample size is small or the population standard deviation is unknown. It is quite similar to the z-score in other respects. Once the standard deviation is unknown, the t-statistic is in use, for one, to approximate the population mean from a sampling distribution of sample statistics.
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The answer for this question is that <span>congressional districts were redrawn to establish safe seats for the political parties. </span>
<span>Before the Reapportionment Act of 1929, the Republicans tried to take over the presidency and both houses of Congress, so that rule would be solely through the Republicans and that no Democrat would have any say over how to govern America. </span>
30 degrees Celsius is 86 degrees Fahrenheit.
Thermometer. An outdoor thermometer gives a reading of the current temperature.
Barometer. A barometer indicates air pressure, usually in inches or millimeters.
Anemometer. Measures wind speed.
Wind Vanes. Shows the direction wind is going.