By Roxy Peck
Amassing facts in moderate methods --
Graphical equipment for describing information distributions --
Numerical equipment for describing info distributions --
Describing bivariate numerical facts --
Random variables and likelihood distributions --
An assessment of statistical inference, studying from information --
Sampling variability and sampling distributions --
Estimating a inhabitants percentage --
Asking and answering questions on a inhabitants share --
Asking and answering questions about the variation among inhabitants proportions --
Asking and answering questions about a inhabitants suggest --
Asking and answering questions on the variation among inhabitants capability --
Learning from experimental facts --
Learning from express info --
Understanding relationships, numerical information half 2 --
Asking and answering questions on greater than capability.
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Extra info for Statistics: Learning from Data
Cengage Learning reserves the right to remove additional content at any time if subsequent rights restrictions require it. 1 Statistical Studies: Observation and Experimentation 11 Adults ages 60 to 86 were assigned to one of three groups. One group took part in an acting class for 4 weeks; one group spent a similar amount of time in a class on visual arts; and the third group was a comparison group that did not take either class. Each participant took several tests measuring problem solving, memory span, self-esteem, and psychological wellbeing at the beginning and at the end of the 4-week study period.
6 million readers. In fact, if you followed all of the recommendations in that issue, you would also be loading up on sweet potatoes, black tea, yogurt, walnuts, grape juice, olive oil, peanuts, and strawberries! Some of these recommendations are supported by evidence (data) from research studies, but how reliable is this evidence? Are the conclusions drawn reasonable, and do they apply to you? These are important questions that will be explored in this chapter. 8 Copyright 2013 Cengage Learning.
B. Was the sample selected in a reasonable way? c. Is the sample likely to be representative of the population of interest? d. Are there any obvious sources of bias? Copyright 2013 Cengage Learning. All Rights Reserved. May not be copied, scanned, or duplicated, in whole or in part. Due to electronic rights, some third party content may be suppressed from the eBook and/or eChapter(s). Editorial review has deemed that any suppressed content does not materially affect the overall learning experience.