Homework Answers
(10)
(a)
Correct option:
Stratified
Explanation:
Population (here: Students) is divided into several strata (here: Classes) and sample is selected from each stratum.
(b)
Correct option:
Convenience
Explanation:
Sample is selected based on convenience and not by probability
methods.
(c)
Correct option:
Systematic
Explanation:
Samples are selected at constant periodicity (here: every 25th item)
(d)
Correct option:
Cluster
Population (here: cancer patients) is divided into several clusters (here: hospitals) and samples are selected from randomly selected clusters.
(e)
Correct option:
random
Explanation:
Items are selected by Simple Random Sampling (SRS) technique.
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Elemenntary Statistics Study Guide 2: Q.10 a-e
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2) Populations versus samples. For each statement, answer with either population, sample, or both. A) The complete set of information. B) A portion, not all, of the information. C) Has the potential to be biased or misleading. D) Measured or summarized with parameters. E) Measured or summarized with statistics. 3) Descriptive versus inferential statistics. For each statement, answer with either descriptive or inferential statistics. A) Facts about samples. B) Educated guesses about populations based on samples. C) The world population...
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identify the 25 correct statements in the set below
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TEST 1: ANSWERS INTS EACH). This section takes around 5 minutes. Name Spring 2019 8) A researcher wants to determine whether female teachers give higher or lower grades, on average, then male teachers. She picks a random sample by picking a random sample of schools, in the schools picked, picking a random sample of departments, and in the departments picked, picking a random sample of teachers. What kind of sampling was performed? d) voluntary response e) cluster b) stratified Random...
#1. Identify what type of sampling method is used (random, systematic, convenience, stratified, cluster). (a) To judge the appeal of a proposed television sitcom, a random sample of 10 people from each of three different age categories was selected and those chosen were asked to rate a pilot show. (b) To maintain quality control in a brewery, every 1000th bottle of beer coming off the production line is opened and tested. #2. The scores of 40 students on a statistic...
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2) Populations versus samples. For each statement, answer with either population, sample, or both. A) The complete set of information. B) A portion, not all, of the information. C) Has the potential to be biased or misleading. D) Measured or summarized with parameters. E) Measured or summarized with statistics. 3) Descriptive versus inferential statistics. For each statement, answer with either descriptive or inferential statistics. A) Facts about samples. B) Educated guesses about populations based on samples. C) The world population...
identify the 25 correct statements in the set below
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