6
find the critical value to test the claim that the population mean is smaller than 50. Assume that population has normal distribution.
Let
20.025 1.96; to.025,10-2.23
A. -1.96
20.05 1.65; to.05,10-1.81
B. None of the other choice is correct
C. 2.23
D. 1.65
E. -1.81
Finish
