Homework answers / question archive / Identify the z-critical value needed for a given confidence interval

Identify the z-critical value needed for a given confidence interval

Statistics

Share With

---

Identify the z-critical value needed for a given confidence interval. What value of z* should be used to construct a 95% confidence interval of a population mean? Answer choices are rounded to the hundredths place.

options are:

a)2.58

b)1.96

c)3.29

d)1.65

 

how can I input this into the graphing calculator? would i use the Zinterval function? This should be a fast easier way I would assume.