Comprehensive Statistical Analysis Applications
30 tutor-authored questions for this Ontario curriculum expectation, ordered easiest to hardest, every one with a full worked solution. Work through all 30 with your weekly-lesson access code.
Sample: the first question, solved
A researcher wants to know if there's a linear relationship between two continuous variables. What method is most appropriate?
And one from the hard end
"A wellness company studies 150 employees and finds r=0.74 between average daily step count and a self-reported energy score (0–100 scale), with EnergyScore=40+0.005(Steps). (a) Interpret r. (b) Predict the energy score for an employee averaging 8000 steps/day. (c) The company wants to test whether a step-count challenge significantly raises average energy scores - state an appropriate H₀ and H₁. (d) Explain why the original correlational study alone can't establish that increasing steps causes higher energy scores."
Solution shown after you try it in practice mode.
Work through all 30, easiest to hardest
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