Asked by Prince Saini on May 26, 2024
Verified
In an interval estimation for a proportion of a population, the value of z at 99.2% confidence is
A) 2.65.
B) 2.41.
C) 1.96.
D) 1.645.
Z Value
A Z value is a statistical measure representing the number of standard deviations a data point is from the mean.
Confidence Level
A statistical measure expressed as a percentage that indicates the probability that a given interval contains the true parameter or result.
- Ascertain the z score corresponding to varying levels of confidence.
Verified Answer
LP
Lakshmikanth ParuchuriJun 02, 2024
Final Answer :
A
Explanation :
The value of z at 99.2% confidence can be found using a standard normal distribution table or calculator. The closest value to 99.2% is 99.4%, which corresponds to a z-value of 2.65. Therefore, the answer is A) 2.65.
Learning Objectives
- Ascertain the z score corresponding to varying levels of confidence.