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[DOCX File]Iowa State University
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What was the sample size? 4.) Was the sampling method utilized probability or non-probability sampling? ... Was this a statistically significant difference? 9.) You analyze the difference in months before initiating sexual activity using a t-test to compare the group means and determine that the p value is 0.08. ... Should this be an adequate ...
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[DOC File]Sampling and Sample Size - Columbia University
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Although a larger sample size enables researchers to find smaller difference statistically significant, that difference may not be large enough be scientifically meaningful. Therefore, as consultants, we would like to recommend that our clients have an idea of what they would expect to be a scientifically meaningful difference before doing a ...
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[DOC File]Power and Sample Size Calculation - Purdue University
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T F If a researcher was hoping to show that the results of an experiment were statistically significant they would prefer a smaller p-value. T F The standard deviation of the heights of a previous 226 class was 26 inches. John was a lot taller than the rest of the class. When he was removed from the study, the standard deviation remained the ...
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Understanding Statistical Significance and Response Rates ...
The main aim here is to establish whether there are statistically significant differences between groups with respect to some key outcome variable. Sample size determination for comparative studies is based on hypothesis tests and power, that is, the probability of …
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[DOC File]Article links, Review Questions and Practice Problems
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Testers measured the length of time it took the subjects to complete each of the six trials. They reported that, on average, the subjects wearing the floral-scented mask completed the maze more quickly than those wearing the unscented mask, though the difference was not statistically significant. This study is . A) a convenience sample.
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[DOC File]Math1080 Quiz # 2 Name___________________________
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Therefore, VEO’s traditional approach of developing a probabilistic survey with a 90-95% confidence interval with a 3-5% MOE will not apply to this survey. Instead, this survey will be used to develop qualitative and quantitative survey results and are not meant to be statistically significant.
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Statistically significant survey sample size