Asked by Nicole Salazar on May 16, 2024
Verified
The t-distribution is very much like the standard normal distribution except that the t-distribution ________.
A) has a smaller variance
B) has a smaller standard deviation
C) is bi-symmetrical
D) has a larger variance
T-Distribution
A probability distribution that is used to estimate population parameters when the sample size is small and the population standard deviation is unknown.
Standard Normal Distribution
A normal distribution with a mean of 0 and a standard deviation of 1, used as a basis for comparing other normal distributions.
- Differentiate between t-distributions and the standard normal distribution.
Verified Answer
CR
charity ramatseaMay 17, 2024
Final Answer :
D
Explanation :
The t-distribution has a larger variance than the standard normal distribution, which means it has thicker tails and is more spread out. This is because the t-distribution is based on smaller sample sizes, and smaller sample sizes have more variability.
Learning Objectives
- Differentiate between t-distributions and the standard normal distribution.
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