Question
The data below contains independently drawn random observations on a variable X. It is known that...
The data below contains independently drawn random observations on a variable X. It is known that σ2 = 1.27
- Construct a 90% confidence interval for E(X). Show your working.
- Interpret the confidence interval.
- Do you need to make any assumptions in order for your confidence interval to be valid?
| x |
| 3.335533872 |
| 4.850993229 |
| 3.50622242 |
| 4.823705685 |
| 4.894336604 |
| 4.408952143 |
| 2.737065985 |
| 4.712005021 |
| 6.13304844 |
| 4.44337885 |
| 4.364079219 |
| 5.80973586 |
| 3.868775534 |
| 2.405280511 |
| 5.072969443 |
| 3.875964458 |
| 3.320130918 |
| 5.1997441 |
| 4.693658999 |
| 7.140006838 |
| 4.499624853 |
| 6.239919965 |
| 4.14907404 |
| 3.833423896 |
| 2.409822402 |
| 4.347880813 |
| 3.995670756 |
| 3.330589947 |
| 1.443505451 |
Homework Answers
Answer #1
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