Question: Pull Down the Shades, an article in the July 2009 Good Housekeeping magazine, presented the a. Was this study an experiment or an observational study?

“Pull Down the Shades,” an article in the July 2009 Good Housekeeping magazine, presented the
a. Was this study an experiment or an observational study?
b. Identify the parameter of interest.
c. Identify the statistic and give its value.

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