If a researcher wishes to have a 95% confidence interval, he or she should use a z value of:
A) ±95
B) 95%
C) 1.96
D) 2.58
E) 1.64
Answer: c
If a researcher wishes to have a 95% confidence interval, he or she should use a z value of:
A) ±95
B) 95%
C) 1.96
D) 2.58
E) 1.64
Answer: c