Unit 8: Statistical Inferences

Students examine study types and the role of randomization, model bell-shaped distributions with normal curves, quantify sampling variability with margins of error, and analyze experimental data to assess whether observed effects are statistically significant.

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What this unit covers

A Study Types · 3 lessons

Goals

• Understand the purpose of randomness in experimental studies, observational studies, and surveys.

Lessons

1. Being Skeptical
2. Study Types
3. Randomness in Groups

B Distributions · 4 lessons

Goals

• Use a normal distribution model to estimate proportions of data within an interval.

Lessons

1. Describing Distributions (Optional)
2. Normal Distributions
3. Areas in Histograms
4. Areas under a Normal Curve

C Not All Samples Are the Same · 4 lessons

Goals

• Use data from samples to determine point estimates of population characteristics and to estimate associated margins of error.

Lessons

1. Not Always Ideal
2. Variability in Samples
3. Estimating Proportions from Samples
4. Estimating a Population Mean

D Analyzing Experimental Data · 3 lessons

Goals

• Use the results from redistributing data from an experiment into groups to determine whether the original difference in means is significant.

Lessons

1. Experimenting
2. Using Normal Distributions for Experiment Analysis
3. Questioning Experimenting

E Let's Put It to Work · 1 lesson

Lessons

1. Heart Rates