Respuesta :
if the percentage is 0.95 then for a two tail test the z score is 1.96. for a one tail test it is 1.645
The value of the z-score at the 95th percentile is 1.645
How to determine the z-score?
The percentile is given as:
95th percentile
This means that:
P = 95%
Express as percentage
P = 0.95
Next, we use a standard normal table to find the z-score.
From the standard normal table of z-scores, we have:
z = 1.645
Hence, the z-score at the 95th percentile is 1.645
Read more about z-scores at:
https://brainly.com/question/25638875
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