Question

Asked Dec 23, 2019

1 views

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?

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 ...

Tagged in

Find answers to questions asked by student like you

Show more Q&A

Q: Subjective Probability Estimate the probability that the next time you ride in a car, the car gets a...

A: Note: Answer may vary.

Q: Determining Sample Size The given expression is used to determine the size of the sample necessary t...

A: The expression that is used to determine the size of the sample necessary to estimate the proportion...

Q: What is the effect on the size of the confidence interval if a T score is used instead of a Z score?...

A: It is known that t curve is more spread out and flatter than the z-curve and t-critical value is alw...

Q: In Exercises 9–20, identify which of these types of sampling is used: random, systematic, convenienc...

A: The CNN conducted an exit poll and selected specific polling stations randomly then surveyed all the...

Q: Denomination Effect. In Exercises 13–16, use the data in the following table. In an experiment to st...

A: Conditional probability:P (A\B) = P (A∩B)/ P (B)

Q: Online Medical Info USA Today posted this question on its website: “How often do you seek medical in...

A: From the given information, there are 1072 internet users who chose to respond, 38% of them responde...

Q: In Exercises 5–12, identify whether the given value is a statistic or a parameter. CHIS A recent Cal...

A: Introduction:Parameter: A parameter is a numerical characteristic based on observations from the ent...

Q: In Exercises 17–20, refer to the accompanying table showing results from a Chembio test for hepatiti...

A: Let A is a randomly selected a subject with a positive test results, given that the subject does not...

Q: How would I find the attached probabilities?

A: It is given that 80% of all marketing personnel are extraverts and 55% of all computer programmers a...