Concept explainers
To find: The hypotheses.
Answer to Problem 12.6.4EP
The hypothesis
Explanation of Solution
Given information:
The given values is
Calculation:
The confidence interval formula is,
Substitute the values in equation −(1)
The lower bound of the interval is,
The upper bound of the interval is,
Thus, the confidence interval mean is
Since the confidence interval for mean is.
Therefore, the null hypothesis
Chapter EP Solutions
Algebra 2
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