Question

If the cutoff for a one-tailed z test is -1.65, choose which of the following z scores would cause you to reject the null hypothesis:

a)-1.2

b)-3.5

c)-2.3

d)2.5

e)-1.96

f)1.5

g) 0

Answer 1

Solution,

z test = -1.65

b) z = -3.5

reject the null hypothesis because z test -1.65 > -3.5

c) z = -2.3

reject the null hypothesis because z test -1.65 > -2.3

e) z = -1.96

reject the null hypothesis because z test -1.65 > -1.96