Question

3. 16.66 points DevoreStat9 7.E.015. My Notes Ask Your Determine the confidence level for each of the following large-sample one-sided confidence bounds. (Round your answers to the nearest whole number.) (a) Upper bound: x 1.04s/Vn (b) Lower bound: x - 1.88s/n e) Upper bound: x + 0.52s/V/n You may need to use the appropriate table in the Appendix of Tables to answer this question. Need Help? Read It Talk to a Tutor

Answer 1

a)
Here the z-value = 1.04
P(z < 1.04) = 0.8508

Hence the confidence level is 85%

b)
P(z > -1.88) = 0.9699

Hence the confidence level is 97%

c)
P(z > 0.52) = 0.6985

Hence the confidence level is 70%