Examlex
Below are data for the number of hours that a random sample of students spent studying (X) and their score on a 25-point quiz (Y). Are longer study sessions related to higher scores? Conduct a Pearson correlation test, one-tailed at α = .01.
α
It represents the significance level in hypothesis testing, usually indicating the probability of rejecting a true null hypothesis or the type I error rate.
Margin of Error
The range of values below and above the sample statistic in a confidence interval, representing uncertainty in the estimate.
Population Mean
The average of all the values in a population.
α
The symbol commonly used to represent the level of significance in hypothesis testing, indicating the probability of wrongly rejecting the null hypothesis.
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