When using the normal approximation with the continuity correction, to calculate P (58 < X < 62), which two numbers should you standardize to z-values? O 58.5 and 62.5 O 57.5 and 62.5 O 57.5 and 61.5 O 58.5 and 61.5 O something else
When using the normal approximation with the continuity correction, to calculate P (58 < X < 62), which two numbers should you standardize to z-values? O 58.5 and 62.5 O 57.5 and 62.5 O 57.5 and 61.5 O 58.5 and 61.5 O something else
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
Section: Chapter Questions
Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...
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![**Question:**
When using the normal approximation with the continuity correction, to calculate \( P(58 < X \leq 62) \), which two numbers should you standardize to z-values?
- [ ] 58.5 and 62.5
- [ ] 57.5 and 62.5
- [ ] 57.5 and 61.5
- [x] 58.5 and 61.5
- [ ] something else
**Explanation:**
The correct approach to solve this problem involves using a continuity correction when approximating a discrete distribution, like the binomial, with a continuous distribution, like the normal distribution.
For the given probability range \( P(58 < X \leq 62) \):
1. Adjust the lower limit using the continuity correction: \( 58 < X \) becomes \( X \geq 58.5 \).
2. Adjust the upper limit already included \( X \leq 62 \) to \( X \leq 61.5 \).
The numbers to standardize to z-values are therefore 58.5 and 61.5.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F324f16c4-c4e5-4b06-b074-f261b39e021a%2F0495cdb2-78a2-4fc2-8a49-b4b1cef3f68e%2Fef6hbl_processed.jpeg&w=3840&q=75)
Transcribed Image Text:**Question:**
When using the normal approximation with the continuity correction, to calculate \( P(58 < X \leq 62) \), which two numbers should you standardize to z-values?
- [ ] 58.5 and 62.5
- [ ] 57.5 and 62.5
- [ ] 57.5 and 61.5
- [x] 58.5 and 61.5
- [ ] something else
**Explanation:**
The correct approach to solve this problem involves using a continuity correction when approximating a discrete distribution, like the binomial, with a continuous distribution, like the normal distribution.
For the given probability range \( P(58 < X \leq 62) \):
1. Adjust the lower limit using the continuity correction: \( 58 < X \) becomes \( X \geq 58.5 \).
2. Adjust the upper limit already included \( X \leq 62 \) to \( X \leq 61.5 \).
The numbers to standardize to z-values are therefore 58.5 and 61.5.
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