Questions: Using the standard Normal distribution tables, what is the area under the standard Normal curve corresponding to Z<0.95 ?
0.8289.
0.7500.
0.1711.
0.9599.
Transcript text: Question 13
2 pts
Using the standard Normal distribution tables, what is the area under the standard Normal curve corresponding to $Z<0.95$ ?
0.8289.
0.7500.
0.1711.
0.9599.
Solution
Solution Steps
Step 1: Define the Problem
We need to find the area under the standard Normal curve corresponding to \( Z < 0.95 \). This can be expressed mathematically as:
\[
P(Z < 0.95) = \Phi(0.95) - \Phi(-\infty)
\]
where \( \Phi(z) \) is the cumulative distribution function (CDF) of the standard normal distribution.
Step 2: Calculate the CDF Values
For the standard normal distribution, we know that:
\[
\Phi(-\infty) = 0
\]
Thus, the equation simplifies to:
\[
P(Z < 0.95) = \Phi(0.95) - 0 = \Phi(0.95)
\]
Step 3: Find \( \Phi(0.95) \)
Using the standard normal distribution tables or a statistical function, we find:
\[
\Phi(0.95) = 0.8289
\]
Final Answer
The area under the standard Normal curve corresponding to \( Z < 0.95 \) is