Multiple Choice
A student wanted to quickly construct a 95% confidence interval for the average age of students in her statistics class. She randomly selected 9 students. Their average age was 19.1 years with a standard deviation of 1.5 years. What is the 95% confidence interval for the population mean?
A) [0.97, 3.27]
B) [15.64, 22.56]
C) [17.97, 20.23]
D) [17.95, 20.25]
E) [17.42, 20.78]
Correct Answer:
Verified
Correct Answer:
Verified
Q32: i. One factor in determining the size
Q33: Which statement(s) is/are correct about the t
Q34: The Sugar Producers Association wants to estimate
Q35: A survey of 144 retail stores revealed
Q36: If 2,000 card-carrying members of a political
Q38: College X is concerned about their employees
Q39: A statistics professor wishes to estimate the
Q40: A statistics professor wishes to estimate the
Q41: College X is concerned about their employees
Q42: What kind of distribution is the t