For the following description of data, identify the W\'s. name the variables, sp

Question

For the following description of data, identify the W's. name the variables, specify for each variable whether its use indicates it should be treated as categorical or quantitative, and for any quantitative VARIABLE identify the UNITS in which it WAS measured Specify whether the data come from in 1990, a designed survey or experiment Are the variables time series or cross-sectional ? Report any concerns you hive as well In 1990, a magazine published an article evaluation dishwashers It listed 43 models, giving the brand, coat (dollars), size (cu ft), type, estimated annual energy coat (dollars), in overall rating (good, excellent, etc.), and repair history for that brand (percentage requiring repair* over the put 5 years). Specify whether the data come from a designed survey or experiment O_A Experiment O_B Designed survey O_C This informal cannot be determined by the given data Are the variables time series or cross-sectional? O Cross_sectional O Time series O Neither Specify any concern* Select all that apply. the data sample "a" not large enough. Ii is unclear if this study u a representative sample of dishwashers QC the data collection was done incorrectly QO There are no specific concerns

Explanation / Answer

Survey methodology involves the study of the sampling of individual units from a population and the associated survey data collection techniques, such as questionnaire construction and methods for improving the number and accuracy of responses to surveys. So it is a desiged survey.

Cross-sectional data, or a cross section of a study population, in statistics and econometrics is a type of data collected by observing many subjects (such as individuals, firms, countries, or regions) at the same point of time, or without regard to differences in time. Analysis of cross-sectional data usually consists of comparing the differences among the subjects.

A time series is a sequence of data points that

1) Consists of successive measurements made over a time interval

2) The time interval is continuous

3) The distance in this time interval between any two consecutive data point is the same

4) Each time unit in the time interval has at most one data point

So in the question, data collected is as of 1990, but not at regular intervals. so it is a cross sectional data.

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