Math Problem Statement
A variable has a mean of 100 and a standard deviation of 6. Four observations of this variable have a mean of 119 and a sample standard deviation of 8. z= , t =
Solution
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Math Problem Analysis
Mathematical Concepts
Statistics
Z-Score
T-Score
Normal Distribution
T-Distribution
Formulas
z = (X - μ) / σ
t = (X - μ) / (s / √n)
Theorems
Central Limit Theorem
Properties of Z-Distribution
Properties of T-Distribution
Suitable Grade Level
Grades 10-12
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