Statistical inference: significance tests about hypothesis
14 important questions on Statistical inference: significance tests about hypothesis
How do we call a statement that the population parameter takes a particular value?
How do we call a statement that the population parameter falls in some range of values?
How do we call the concept that describes how far the parameter described by the alternative hypothesis falls from the parameter given by the null hypothesis?
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How is the distance measured by the test statistic expressed?
What does it take to satisfy the sample size guideline?
What kind of alternative hypothisis is this; Ha: p
P0
How do we call the cutoff point we use to determine the maximum value for p for us to reject H0?
What are the steps for testing the hypothesis on significance?
- assumptions
- hypotheses
- test statistic
- P-value
- conclusion.
What assumptions need to be checked when testing a proportional hypothesis for significance?
- the variable is categorical with proportions defined in context
- random variation
- satisfy sample size guideline
What do you calculate when you're creating the test statistic?
What assumptions need to be checked when checking a population mean on significance?
- the variable is quantitative
- the data is gathered randomly
- the population distribution is normal.
What does |z| >/= 1,96 mean?
How do i calculate the power of a test?
When do we use t-scores, and z scores?
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