What is the critical value of 89% confidence level?
What is the critical value of 89% confidence level?
Confidence level, c=0.89.
What is za 2 for a 95% confidence interval of the population mean?
| Confidence (1–α) g 100% | Significance α | Critical Value Zα/2 |
|---|---|---|
| 90% | 0.10 | 1.645 |
| 95% | 0.05 | 1.960 |
| 98% | 0.02 | 2.326 |
| 99% | 0.01 | 2.576 |
What is the critical value for 88 confidence interval?
Answer and Explanation: A 88% confidence interval corresponds to α=0.12 .
How do you find a za 2 confidence interval?
Alpha levels are related to confidence levels: to find alpha, just subtract the confidence interval from 100%. for example, the alpha level for a 90% confidence level is 100% – 90% = 10%. To find alpha/2, divide the alpha level by 2. For example, if you have a 10% alpha level then alpha/2 is 5%.
What is the z-score for a 90 confidence interval?
1.645
Step #5: Find the Z value for the selected confidence interval.
| Confidence Interval | Z |
|---|---|
| 85% | 1.440 |
| 90% | 1.645 |
| 95% | 1.960 |
| 99% | 2.576 |
What is Z for 80 confidence interval?
1.28 a
The value is determined by the confidence level you have chosen. For example, the z* value for an 80% confidence level is 1.28 and the z* value for a 99% confidence level is 2.58. The standard error is the standard deviation OF THE STATISTIC.
What is the critical value for a 90% confidence interval?
z=1.645
The area is at z=1.645. This is your critical value for a confidence level of 90%.
What is the z-score of 88?
| Percentile | z-Score |
|---|---|
| 87 | 1.126 |
| 88 | 1.175 |
| 89 | 1.227 |
| 90 | 1.282 |
What is the z-score for 87 confidence interval?
Explanation: The confidence interval is 87%. It is the same as 0.87.