package deal of STA 2381 Correctly Answered.

What is the goal of hypothesis testing? - correct answer to test a hypothesis regarding a single mean ______________ is always located in the null hypothesis and the hypotheses are always in terms of the _________________. - correct answer ...

parameter: mu statistic: x bar - correct answer What variables are used for parameter and statistic of interest? Null: mu1 - mu2 = change alt: mu1 - mu2 > < no= change - correct answer testing hy...

Hypothesis Statements are made about: - correct answer Population parameters Type I Error - correct answer Rejecting null hypothesis when it is true Probability of Type I Error - correct answer ...

Retrospective Study - correct answer A retrospective study gathers historical data through records. The outcomes have already occurred before the study Observational Study - correct answer A type of stud...

nominal - correct answer Naming or labeling (example: color of your eyes) Ordinal - correct answer being of a specified position or order in a numbered series interval/ratio - correct answer ...

The independent-samples test is designed to measure _____________ between two samples that are independent of each other or two subsets within the same sample - correct answer Mean differences A ______________ t-test for two samples means is appropri...

Defining Experimental Methodology - correct answer Evaluate the influence of some input variable on some output variable while controlling for all other extraneous variables Requirements of Causality - correct answer ...

types of qualitative data - correct answer ordinal, nominal, dichotomous types of sampling - correct answer simple random, systematic, stratified, cluster systematic sampling - correct answer ...

Which one of the following statements is TRUE? - correct answer As the alpha-level increases, the probability of a Type II error of a hypothesis test decreases. A pharmaceutical company has developed a new medication to lower a person's cholesterol....

Mill's Method of Difference - correct answer if everything's the same except for one thing, then we can really isolate a cause; one variation; precursor to the modern experiment; looking for difference between groups vs within groups (classical) ex...

Census - correct answer A type of survey where everyone in population is measured EX: A survey where for ALL college students. Sample - correct answer People from a population you measure EX: creat...

classical definition of probability - correct answer P({E}) = (# of outcomes in the event)/(# of outcomes in the sample space) = n(E)/n(S) probability of complement - correct answer P(E) = 1 - P(E^-1) ...

DMAIC - correct answer Define, Measure, Analyze, Improve, Control sort, set in order, shine, standardize, sustain - correct answer 5s Design for Six Sigma - correct answer ...

Descriptive Statistics - correct answer used to organize, summarize, and describe data in a meaningful way. Ex: average salaries Inferential Statistics - correct answer Uses small subset (sample) dat...