Questions: Find the Z-score such that the area under the standard normal curve to the left is 0.52. Click the icon to view a table of areas under the normal curve. The Z-score such that the area under the curve to the left is 0.52. (Round to two decimal places as needed.)
Transcript text: Find the Z-score such that the area under the standard normal curve to the left is 0.52 .
Click the icon to view a table of areas under the normal curve.
$\square$ is the Z-score such that the area under the curve to the left is 0.52 .
(Round to two decimal places as needed.)
Solution
Solution Steps
Step 1: Understanding the Problem
We need to find the Z-score such that the area under the standard normal curve to the left is 0.52. This means we are looking for a value z such that:
P(Z<z)=0.52
where Z is a standard normal random variable.
Step 2: Finding the Z-score
To find the Z-score corresponding to the cumulative probability of 0.52, we can use the inverse of the cumulative distribution function (CDF) for the standard normal distribution. This is denoted as:
z=Φ−1(0.52)
Using statistical tables or computational methods, we find:
z≈0.05
Step 3: Rounding the Result
The Z-score calculated is 0.05. Since the problem requires rounding to two decimal places, we have:
z≈0.05
Final Answer
The Z-score such that the area under the curve to the left is 0.52 is