Paying for First Dates USA Today posted this question on the electronic version of its newspaper: “Should guys pay for the first date?” Of the 1148 subjects who decided to respond, 85% of them said “yes.”a. What is wrong with this survey?b. Is the value of 85% a statistic or a parameter?c. Does the survey constitute an experiment or an observational study?

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Asked Dec 23, 2019
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Paying for First Dates USA Today posted this question on the electronic version of its newspaper: “Should guys pay for the first date?” Of the 1148 subjects who decided to respond, 85% of them said “yes.”

a. What is wrong with this survey?

b. Is the value of 85% a statistic or a parameter?

c. Does the survey constitute an experiment or an observational study?

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Expert Answer

Step 1

Given study is,

Paying for First Dates USA, posted the question on electronic version of its newspaper that, “Should guys pay for the first date?”

So, there are 1148 subjects who responded and 85% of them said “yes”

Step 2

a)In this case, responses are not random. They are self-selected, so it is not a representative of whole population. There may be possible that people with strongest opinion often respond to a survey. This wrong with the survey.

Step 3

b)Here, value 85% is the value of sample proportion.

First, we need to understand about statistic and a parameter.

A parameter is a value that describes some aspect of a population.

A statistic is an estimate of ...

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