Chapter 1 Exam Name___________________________________ MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question. 1) The names of all 135 students in a professor's class are written on identical slips of
paper, and the slips are placed into a large glass jar. Then, the professor selects 5 random
slips from the jar. Identify the kind of sample that is being used.1) _______
A) cluster sample B) simple random sample
C) sample of convenience D) systematic sample
2) A middle school student passes out leaflets to the adults at a school function. The leaflets
ask the recipient to indicate whether they believe in anthropogenic global warming. The
bottom of the leaflet indicates that the completed leaflet should be returned to the
student. Identify the kind of sample that is being used.2) _______
A) sample of convenience B) stratified sample
C) systematic sample D) cluster sample
3) Which of the following sample types should you always regard as unreliable? 3) _______
A) cluster samples B) stratified samples
C) voluntary response samples D) simple random samples
4) Which of the following is the best description of a randomized experiment? 4) _______
A) an experiment in which the treatments are assigned randomly to experimental units
B) an experiment in which the investigators are chosen at random
C) an experiment in which the experimental units are selected at random
D) an experiment in which the outcomes are random
5) Questioning every 14th customer leaving a theatre about the movie they had seen, would
be an example of systematic sampling.5) _______
A) False B) True
6) In an experiment, subjects are put into two categories according to sex, and then each
subject is randomly assigned a treatment . This is an example of...6) _______
A) gender bias B) randomized blocking
C) confounding D) observational studies
7) Which one of the following data are discrete? 7) _______
A) the speed of the boat's propeller, in revolutions per minute
B) the number of crew members on the boat
C) the latitude and longitude of a boat at sea
D) the latitude and longitude of the boat's port of departure
8) When rolling two six -sided dice, your total roll ranges from 2 (double ones) to 12
(double sixes).Characterize the nature of the roll total.8) _______
A) qualitative and continuous B) quantitative and continuous
C) quantitative and discrete D) qualitative and discreteTest Bank for Elementary Statistics A Step By Step Approach 10e Allan Bluman (All Chapters, 100% Original Verified, A+ Grade) Chapter 1 9) When running an experimental study, the group that is manipulated can be called the treatment group. 9) _______ A) True B) False 10) In a research study, it is always preferable for the researcher to carefully choose his participants rather than randomly select them from a suitable group. 10) ______ A) True B) False 11) Which one of the following data are discrete? 11) ______ A) the height of the tallest player on Duke University's men's basketball team B) the pre-season ranking of Duke University's men's basketball team C) the average height of players on the University of Connecticut's women's basketball team D) the average preseason ranking of the University of Connecticut's women's basketball team over the past 10 years 12) A(n) _______________ makes it difficult to determine whether an experimental outcome is due to the applied treatment. 12) ______ A) error B) counfounder C) uncooperative subject D) perplexer 13) Quantitative data can be further classified as continuous or nonsequential. 13) ______ A) True B) False 14) Which one of the following data are continuous? 14) ______ A) the time remaining for an MP3 music download B) the number of times the file has been downloaded C) the number of musicians performing in the MP3 file D) all of these represent continuous data 15) Inferential statistics is based on probability. 15) ______ A) False B) True 16) The number of birds in a tree is an example of a continuous variable. 16) ______ A) False B) True 17) The variable of height is an example of a quantitative variable. 17) ______ A) False B) True 18) Determine which of the following describes quantitative data. i). the name of a chemical sample ii). the mass of a chemical sample iii). the color of a chemical sample 18) ______ A) i, ii, and iii B) ii only C) i only D) i and ii only 19) A pollster randomly samples 164 Democrats, 141 Republicans and 17 Independents (all registered voters) in Metro City and asks each poll participant which mayorial candidate he or she prefers. Identify the kind of sample that the pollster is using. 19) ______
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