Table of contents
- 1. Introduction to Statistics(0)
- 2. Describing Data with Tables and Graphs(0)
- 3. Describing Data Numerically(0)
- 4. Probability(0)
- 5. Binomial Distribution & Discrete Random Variables(0)
- 6. Normal Distribution & Continuous Random Variables(0)
- 7. Sampling Distributions & Confidence Intervals: Mean(0)
- 8. Sampling Distributions & Confidence Intervals: Proportion(0)
- 9. Hypothesis Testing for One Sample(0)
- 10. Hypothesis Testing for Two Samples(0)
- 11. Correlation(0)
- 12. Regression(0)
- 13. Chi-Square Tests & Goodness of Fit(0)
- 14. ANOVA(0)
8. Sampling Distributions & Confidence Intervals: Proportion
Sampling Distribution of Sample Proportion
8. Sampling Distributions & Confidence Intervals: Proportion
Sampling Distribution of Sample Proportion: Videos & Practice Problems
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Problem 7Multiple Choice
A company finds that 40% of its products are returned. In a random sample of 80 products, what is the probability that at least 38 are returned? Use the normal approximation with continuity correction.
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