Multiple Choice
A sample of 225 elements from a population with a standard deviation of 75 is selected.The sample mean is 180.The 95% confidence interval for μ is
A) 105 to 225.
B) 175 to 185.
C) 171.78 to 188.22.
D) 170.2 to 189.8.
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q12: A sample of 200 elements from a
Q31: A random sample of 1000 people was
Q32: A random sample of 64 SAT scores
Q32: In order to estimate the average electric
Q35: A random sample of 64 SAT scores
Q37: The level of significance α<br>A) can be
Q38: To compute the minimum sample size for
Q40: The manager of a grocery store has
Q57: In general, higher confidence levels provide<br>A) wider
Q58: For a given confidence level and when