PSC310 URI Final Exam Questions & Answers 2023/2024
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PSC310 URI
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PSC310 URI
PSC310 URI Final Exam Questions & Answers 2023/2024
Population - ANSWER-all possible cases we want to study
sample - ANSWER-subset of the population / cases within the population that we will be able to study
random sample - ANSWER-all members of the population have an equal probability ...
PSC310 URI Final Exam Questions &
Answers 2023/2024
Population - ANSWER-all possible cases we want to study
sample - ANSWER-subset of the population / cases within the population that we will be able to study
random sample - ANSWER-all members of the population have an equal probability of being chosen
statistical inference - ANSWER-using data from a sample to gain information about the population
causal inference - ANSWER-how can we infer causality using the data we have
Central Limit Theorem - ANSWER-If we collected an infinite number of random samples and plotted the
means from meach sample, the means would be normally distributed
outcome - ANSWER-the result of a random observation
independent outcomes - ANSWER-two or more outcomes outcomes that do not affect the outcome of
the other(s)
dependent outcomes - ANSWER-when one outcome depends on what the previous outcome was
if the Probability value is 0... - ANSWER-the outcome is impossible
if the probability value is 1... - ANSWER-the outcome is certain
sampling distribution - ANSWER-a hypothetical distribution of sample means
, standard error - ANSWER-the standard deviation of the sampling distribution of the mean
confidence interval - ANSWER-How confident are we that our sample mean represents our population
mean
hypothesis - ANSWER-the relationship we expect to observe between the IV and DV
null hypothesis - ANSWER-what we would expect to observe if there were NO relationship between our
IV and DV
Statistical Significance - ANSWER-when the p-value is sufficiently low (below 0.05)
p-hacking - ANSWER-trying to do things to your data to hit your benchmark p-value (often 0.05)
bivariate - ANSWER-two variables
what kind of variable is a categorical variable - ANSWER-nominal
what kind of variable is a continuous variable - ANSWER-interval
tabular analysis - ANSWER-a bivariate analysis that is appropriate for two categorical variables
chi-sqaure test - ANSWER-Used only when there are two nominal variables
If the chi-squared test answer is larger than p-value.. - ANSWER-there IS a significant relationship
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