<< Chapter < Page | Chapter >> Page > |
Card 11 / 20:
Announcements for 84 upcoming engineering conferences were randomly picked from a stack of IEEE Spectrum magazines. The mean length of the conferences was 3.94 days, with a standard deviation of 1.28 days. Assume the underlying population is normal.
In words, define the random variables X and X ¯ .Which distribution should you use for this problem? Explain your choice.Construct a 95% confidence interval for the population mean length of engineering conferences. State the confidence interval. Sketch the graph. Calculate the error bound.
Previous Card | ← Previous Card Button |
Next Card | → Next Card Button |
Flip Card | ↑ / ↓ / Return / Space |
Notification Switch
Would you like to follow the 'Introductory statistics' conversation and receive update notifications?