Exam (elaborations)
Stats 2300 Clemson exam with correct answers
- Course
- Stat 2300
- Institution
- Clemson University
Stats 2300 Clemson exam with correct answers
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Stats 2300 Clemson exam with correctanswers
Individuals - ** VERIFIED ANSWERS🔰 ✔✔the entities that we measure in a study. May
be people or objects
Population - ** VERIFIED ANSWERS🔰 ✔✔the entire group to be studied
census - ** VERIFIED ANSWERS🔰 ✔✔we collect data for every individual in a population
sample - ** VERIFIED ANSWERS🔰 ✔✔subset of the ovulation for which we actually
collect data
parameter - ** VERIFIED ANSWERS🔰 ✔✔numerical summary of the population. values
are usually unknown (unless we take a census)
statistic - ** VERIFIED ANSWERS🔰 ✔✔a numerical summary of a sample. use this to
estimate the value of population parameters
descriptive statistics - ** VERIFIED ANSWERS🔰 ✔✔methods for summarizing the
collected data. Describe data through tables, gaps, and numerical summaries such as
averages or percentages. Allow the researcher to obtain an overview of the data and can help
determine the type of statistical methods the researcher should use
inferential statistics - ** VERIFIED ANSWERS🔰 ✔✔methods that take a result from a
sample, extend it to the population, and measure the reliability of the result. The accuracy of
a generalization always contains uncertainty because a sample cannot tell us everything
about a population. This is why results should include a measure of reliability
, process of statistics - ** VERIFIED ANSWERS🔰 ✔✔1. identify the research objective
2. collect the data needed to answer the questions posed
3. describe the data
4. perform inference
variable - ** VERIFIED ANSWERS🔰 ✔✔any characteristic of the individuals within the
population. Can take different values for different individuals
distribution of a variable - ** VERIFIED ANSWERS🔰 ✔✔tells us what values it takes and
how often it takes those values
quantitative - ** VERIFIED ANSWERS🔰 ✔✔if observations of a variable take numerical
values that represent different magnitudes of the variable
qualitative - ** VERIFIED ANSWERS🔰 ✔✔if each observation belongs to one of a set of
categories
nominal level - ** VERIFIED ANSWERS🔰 ✔✔if the values of the variable name, label, or
categorize. The naming scheme does not allow for the values to be ranked or order.
Qualitative
ordinal level - ** VERIFIED ANSWERS🔰 ✔✔if it has properties of the nominal level of
measurement, but the naming scheme allows for the values to be ranked or order.
Qualitative
interval level - ** VERIFIED ANSWERS🔰 ✔✔if it has the properties of the ordinal level of
measurement, but the differences in the values of the variable have meaning. A value of
zero does not mean the absence of the quantity. Values can be meaningfully added and
subtracted. Quantitative
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