Nsg 522 Midterm Study Guide Questions And Correct Answers

interval variables are: {Ans: - Interval between each number is equal - There is not a meaningful zero - Truly continuous - can be measured as a decimal Examples include - Temperature in Fahrenheit and Centigrade - Standardized tests such as IQ, SAT, ACT NOTE: There are very few interval level variables}Selection of a statistical Test is Based On {Ans: - The question being asked - The level of measurement - Whether the data meet the criteria for using parametric or nonparametric procedures - When comparing groups, the number of groups - Whether there are repeated measures of the outcome variables in the same person}Important Concepts for Inferential Statistics {Ans: - Sampling - Confidence Intervals - Probability - Hypothesis testing}what determines what mathematical and statistical analyses will be performed? {Ans: The type of data (categorical or continuous) determines what mathematical and statistical operations can be performed}Hypothesis Testing {Ans: - A statement is generated about a population - Statistical testing is used to assess the likelihood that the hypothesis is true}There are two broad areas of statistical inference {Ans: *Estimation of population parameters* - Used to estimate population parameters such as means and proportions *Hypothesis