Test statistic/ result symbol - t
Sample mean symbol - x-bar
Sample standard deviation symbol - s
Sample size symbol - n
Hypothesis value (value from H0) symbol - mu
What constitutes a low p-value? - less than 0.05
What is a one-sample t-test? - measure one quantitative var...
What constitutes a low p-value? - ✅✅ less than 0.05
What is a one-sample t-test? - ✅✅ measure one quantitative variable in a single
set of observation
What is a paired samples t-test? - ✅✅ measure one quantitative variable in a
combination of 2 highly related sets of observations
What is a two-independent samples t-test? - ✅✅ measures one independent
variable between two independent sets of observations
Determine whether each describes a parameter or a statistic.
After checking computer records for every commercial movie made last year, the
longest running time is found to be 187 minutes. The number 187 is a
____________. - ✅✅ parameter
Determine whether each describes a parameter or a statistic.
A sample of students is selected and the average age is found to be 20.7 years. The
number 20.7___________. - ✅✅ statistic
Determine whether each describes a parameter or a statistic.
42 of the 50 US Governors own a computer, that is, 84%. The number 84% is a
____________. - ✅✅ statistic
Determine whether each describes a parameter or a statistic.
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