If there are 300 students in Binnon on Sept 1 with mean age of 22 and...
- If there are 300 students in Binnon on Sept 1 with mean age of 22 and standard deviation of 3, what is the probability of selecting another sample of 6 students with a mean age greater than 19?
- Construct a 95% confident Interval to estimate the 300 students’ average age.
Homework Answers
| 19.00 | hypothesized value |
| 22.00 | mean 1 |
| 3.00 | std. dev. |
| 1.22 | std. error |
| 6 | n |
| 5 | df |
| 2.449 | t |
| .0290 | p-value (one-tailed, upper) |
The probability is 0.0290.
| 21.66 | confidence interval 95.% lower |
| 22.34 | confidence interval 95.% upper |
| 0.34 | margin of error |
The 95% confident Interval to estimate the 300 students’ average age is between 21.66 and 22.34.
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