- Description
QNT 275 Week 3 Quiz
Your answers : 6/6 (100%)Submitted on May 30, 2017, 4:07 PM
- Correct answerquestion1
The sampling error is:
an error that occurs when a sample of 30 or more members is drawn
the difference between the value of a sample statistic and the value of the corresponding population parameter
an error that occurs when a sample of fewer than 30 members is drawn
an error that occurs during collection, recording, and tabulation of data
- Correct answerquestion2
To use an F distribution, the random variable must be:
a discrete random variable
a qualitative random variable
a continuous random variable
either a discrete or a continuous random variable
- Correct answerquestion3
A continuous random variable is a random variable that can:
assume any value in one or more intervals
assume no continuous random frequency
have no random sample
assume only a countable set of values
- Correct answerquestion4
The population distribution is the probability distribution of the:
whole population of a country
population data
population probabilities
population means
- Correct answerquestion5
Which of the following is not a characteristic of the normal distribution?
The value of the mean is always greater than the value of the standard deviation
The two tails of the curve extend indefinitely
The total area under the curve is 1.0
The curve is symmetric about the mean
- Correct answerquestion6
The units of an F distribution:
are always positive
are always nonnegative
can be negative, zero, or positive
are always negative