Multiple Choice
A sample of 225 elements from a population with a standard deviation of 75 is selected. The sample mean is 180. The 98% confidence interval for μ is
A) 105 to 225.
B) 175 to 185.
C) 165.6 to 194.4.
D) 164.575 to 195.425.
Correct Answer:
Verified
Correct Answer:
Verified
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