Multiple Choice
An experiment involves selecting a random sample of 256 middle managers at random for study.One item of interest is their mean annual income.The sample mean is computed to be $35,420 and the sample standard deviation is $2,050.What is the standard error of the mean?
A) $128.125
B) $138.36
C) $2,050
D) $8.01
Correct Answer:
Verified
Correct Answer:
Verified
Q1: In stratified random sampling,a population is divided
Q2: Based on the central limit theorem,the size
Q4: In practice,researchers collect a sample of size
Q8: Suppose we select every fifth invoice in
Q8: The mean of all possible sample means
Q10: An estimate of the population mean based
Q40: What is the name of the standard
Q68: If the size of a sample equals
Q70: The mean of all possible sample means
Q102: A statewide sample survey is to be