Multiple Choice
The mean systolic blood pressure for a random sample of 28 women aged 18-24 is 114.9 mm Hg and the standard deviation is 13.1 mm Hg. Construct a 90% confidence interval for the standard deviation ?, of the systolic blood pressures of all women aged 18-24. Round to the nearest hundredth when necessary.
A) (10.22, 18.34)
B) (10.75, 16.94)
C) (11.23, 15.99)
D) (10.59, 16.54)
Correct Answer:
Verified
Correct Answer:
Verified
Q1: What is the confidence coefficient in
Q3: The director of a hospital wishes
Q6: The registrar's office at State University would
Q7: Explain what the phrase 95% confident means
Q8: Let <span class="ql-formula" data-value="t _
Q9: When the sample size is small, confidence
Q9: Fifteen SmartCars were randomly selected and
Q10: A computer package was used to
Q11: Which statement best describes a parameter?<br>A) A
Q45: The Central Limit Theorem guarantees an approximately