B. find the critical value for the test of significance in each of the given information
 1.one-tailed test, g? is known a = 0.05. m = 34
 2. two-tailed test, g? is known, a = 0.05. n = 45
 3. one-tailed test, g? is unknown. a
 = 0.05. n= 14
 4. two-tailed test, g? is unknown, a = 0.05, n = 10
 5. one-tailed test, o? is known a = 0.01. n = 40
 6. two-tailed test, o? is known, a :
 = 0.01. 2 = 50
 7. one-tailed test. g? is unknown a = 0.01.7=16
 8. two-tailed test, o? is unknown, a = 0.01, 7 = 9
 9. one-tailed test. g? is known a = 0.01.7 = 38
 10. two-tailed test, g? is unknown, a = 0.1. n = 12