1. What is the relationship between the expected value of the sample mean and the
expected value of the population?
2. How does the variance of the sample mean compare to the variance of the population?
A. It is smaller and therefore s
1. The time to complete the construction of a soapbox derby car is normally distributed with
a mean of three hours and a standard deviation of one hour. Find the probability that it
would take more than five hours to construct a soapbox derby car.
1. A sample space contains _.
A. Outcomes of the relevant
B. Several outcomes of an
C. All possible outcomes of an
D. One of several outcomes of an
2. Events are collectively exhaustive if _.
A. They include
STAT-S301 Spring 2016 Final Exam Practice 2
1. A benefit of point estimates is that they provide information about their accuracy.
Comment: This is the benefit of interval estimates.
2. The point estimate for the population mean
STAT-S301 Spring 2016 Final Exam Practice
1. A _ for the mean is an interval estimate around a sample mean that provides us with a range of
plausible values for the true population mean.
A) confidence level
B) margin of error
C) confidence interval
STAT-S301 SPRING 2016 Midterm - Practice 1
1. Asking customers at the shopping mall about their voting intentions in the upcoming political election is an
example of secondary data.
2. Which of the following is an examp
Case Weatherhead School of Management
Homework 1 Due Monday, July 25 at the beginning of the class. Turn in a hard copy
of your answers. To be done individually or in a team of two people (turn in one copy
1. Construct a box p
13. The weight of people in a small town in Missouri is known to be normally distributed with a mean of 180 pounds and a standard deviation of 28 pounds. On a ra
across the river, a sign states, Maximum capacity 3,200 pounds or 16 persons. What is the pro
Bayes' theorem is used to update prior probabilities
based on the arrival of new relevant information.
Combinations are used when the order in which different objects are arranged matters.
FALSE - Combinations are used when the order in
A continuous random variable is characterized by uncountable values and can take on any value
within an interval.
We are often interested in finding the probability that a continuous random variable assumes a
FALSE - If
1. Bias refers to the tendency of a sample statistic to systematically over- or underestimate a
Selection bias occurs when the sample is mistakenly divided into strata, and random samples are
drawn from each stratum.