| Tag | Value |
|---|---|
| file | Distributions_uva-central-limit-theorem-1281-en_uva-central-limit-theorem-1281-en |
| name | uva-central-limit-theorem-1281-en |
| section | Distributions/Limit Theorems/Central Limit Theorem |
| type | schoice |
| solution | FALSE, FALSE, FALSE, TRUE |
| Type | Conceptual |
| Language | English |
| Level | Statistical Literacy |
| IRT-Difficulty | 2.952 |
| p-value | 0.4069 |
To fix a fan you need time X. The distribution of the random variable X has a mean of 1 hour with a standard deviation of 1 hour. Your company has 70 such fans. What then is the probability that the average repair job will take longer than 50 minutes? (Students need the normal standard deviation table)