Examlex
A meter stick balances at the 50.0-cm mark.If a mass of 50.0 g is placed at the 90.0-cm mark,the stick balances at the 61.3-cm mark.What is the mass of the meter stick?
Alpha
In hypothesis testing, the probability of making a Type I error; the significance level set before conducting a test.
Alternative
Refers to the alternative hypothesis in statistical testing, which contrasts the null hypothesis by suggesting there is a significant effect or difference.
T-statistic
A ratio used in hypothesis testing that compares the difference between an observed sample mean and a hypothetical population mean to the standard error of the mean.
Alpha
A coefficient that often represents the level of significance in hypothesis testing, marking the threshold for rejecting the null hypothesis.
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