In order to construct a confidence interval for the population variance, a rando
ID: 3067931 • Letter: I
Question
In order to construct a confidence interval for the population variance, a random sample of n observations is drawn from a normal population. Use this information to find 2/2,df and 21-/2,df under the following scenarios. Use Table 3. (Round your answers to 3 decimal places.)
In order to construct a confidence interval for the population variance, a random sample of n observations is drawn from a normal population. Use this information to find 2/2,df and 21-/2,df under the following scenarios. Use Table 3. (Round your answers to 3 decimal places.)
Explanation / Answer
from chi square table:
( please revert)
2/2,df 21-/2,df a. A 90% confidence level with n = 19. 9.390 28.869 b. A 90% confidence level with n = 48. 32.268 64.001 c. A 95% confidence level with n = 19. 8.231 31.526 d. A 95% confidence level with n = 48. 29.956 67.821Related Questions
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