SOLUTION: Specify whether you will use a normal distribution, t-distribution or neither for the below examples: A study is performed assessing the average height of a sample of 20 5th gr

Question 1086347: Specify whether you will use a normal distribution, t-distribution or neither for the below examples:
A study is performed assessing the average height of a sample of 20 5th graders. The mean height obtained in the sample was 56� and was approximately normally distributed. The sample standard deviation was 3.5�.

Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Specify whether you will use a normal distribution, t-distribution or neither for the below examples:
A study is performed assessing the average height of a sample of 20 5th graders. The mean height obtained in the sample was 56� and was approximately normally distributed. The sample standard deviation was 3.5�.
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Ans:: t-distribution because sample size is below 30.
Cheers,
Stan H.
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