Sagot :
Answer:
1.64
For a 95% confidence interval, we use z=1.96, while for a 90% confidence interval, for example, we use z=1.64.
Step-by-step explanation:
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Answer:
Calculating the Confidence Interval
Confidence Interval Z
85% 1.440
90% 1.645
95% 1.960
99% 2.576
Step-by-step explanation:
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