Practice What Is Statistical Inference? (4.1) - Statistical Inference and Hypothesis Testing

Practice: What is Statistical Inference?

Lesson 4.1Statistical Inference and Hypothesis Testing

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9 questions

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4 cards from this section. Quick, good the night before a test.
Exercise
6 questions · about 4 min · pass mark 70%. Hints available.
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Quiz
3 questions · about 2 min · pass mark 70%. Hints available.
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6 sample questions

Question 1.
What is point estimation?
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Think of a specific number you might use to represent a larger group.
Question 2.
What does interval estimation provide?
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It gives you more than just one answer.
3Question 3.
What does statistical inference allow us to do?
- Make conclusions about a sample only
- Make generalizations about a population based on a sample
- Estimate probabilities for future events
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Think about how small data sets relate to larger contexts.
4Question 4.
True or False: Point estimation provides a range of values rather than a single point.
- True
- False
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Remember the difference between point and interval estimation.
Question 5.
A researcher has a data sample from a population. How would they calculate both a point and an interval estimate for the mean? Provide steps.
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Recall how to compute means and standard deviations.
Question 6.
You have noticed changes in customer purchase behavior over a month. Now you want to test if the average expenditure has increased. Outline the hypothesis testing steps you would take.
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Think about each step logically; use your learning from earlier sessions.

5 more questions in this section. Enroll free to practise them all.