Independent-measures t statistic
For independent-measures t statistic, the estimated standard error measures how much difference is reasonable to expect between two sample means if the null hypothesis is true.
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Compute a 95% confidence interval for the proportion of surgeries follrowed by surgical site infections in the U.K.? Assume that the data are a random sample.
The data from independent-measures research study produce a sample mean difference of 6 points and an estimated standard error of 2 points. If there are n = 8 scores in each sample, then the value for the t statistic is ____.
The homogeneity of variance assumption states that the two population variances are equal.
For an independent-measures research study, the data show an 8-point difference between the two treatment means and a pooled variance of 4. Given this information, what is the value of Cohen's d?
An independent-measures study produces sample means of M1 = 35 and M2 = 31 and a pooled variance of 25. For this study, Cohen's d = ____.
Biff and Dilara were arguing over a news feed regarding population of catfish (Silarus gianis) in France which had figured out how to hunt feral pigeons. A submerged catfish lying in wait would rush in shallow water (liek a killer whale beaching i
To keep up with current events, 30% of the people read the paper, 40% watch the news upon TV, and 10% do both. If you choose an individual at random, determine the probability that he or she will read the paper or watch the news on TV but will not
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