Multiple Choice
A random sample of 64 observations has a mean of 30. The population variance is assumed to be 9. The 85.3% confidence interval estimate for the population mean (to the third decimal place) is:
A) [28.369, 31.631].
B) [29.456, 30.544].
C) [28.560, 31.440].
D) [29.383, 30.617].
Correct Answer:
Verified
Correct Answer:
Verified
Related Questions
Q2: The use of the standard normal
Q3: A 95% confidence interval estimate for a
Q5: Suppose that a 90% confidence interval
Q6: Which of the following is the width
Q7: A sample of size 200 is to
Q8: When constructing a confidence interval estimate of
Q9: Suppose that the amount of time teenagers
Q10: Which of the following statements are correct?<br>A)If
Q11: In the formula <span class="ql-formula"
Q70: If the standard error of the sampling