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# Unit 11: Inference for quantitative data: Means

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## About this unit

From quality control to predicting the amount of snowfall that will result from an upcoming blizzard, this unit will give you the tools to calculate an inference from a population mean to make predictions about quantitative outcomes.

### Learn

### Practice

- Conditions for a t interval for a meanGet 3 of 4 questions to level up!
- Finding the critical value t* for a desired confidence levelGet 3 of 4 questions to level up!
- Calculating a t interval for a meanGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

### Learn

### Practice

- Writing hypotheses for a test about a meanGet 3 of 4 questions to level up!
- Conditions for a t test about a meanGet 3 of 4 questions to level up!

### Learn

### Practice

- Calculating the test statistic in a t test for a meanGet 3 of 4 questions to level up!
- Calculating the P-value in a t test for a meanGet 3 of 4 questions to level up!
- Making conclusions in a t test for a meanGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Learn

### Practice

- Conditions for inference on two meansGet 3 of 4 questions to level up!
- Two-sample t interval for the difference of means (calculator-active)Get 3 of 4 questions to level up!

### Learn

### Practice

- Writing hypotheses to test the difference of meansGet 3 of 4 questions to level up!
- Test statistic in a two-sample t testGet 3 of 4 questions to level up!
- P-value in a two-sample t testGet 3 of 4 questions to level up!
- Making conclusions about the difference of meansGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

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Level up on all the skills in this unit and collect up to 1,400 Mastery points!#### Unit test

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