7.2.6 Match the appropriate test of significance to each of the following resear

Question

7.2.6
Match the appropriate test of significance to each of the following research questions.

1) Is the average body temperature higher than 98.6°F?

Comparing two means (independent)

Testing a mean difference (paired data)

Testing a single mean

Testing a single proportion

Comparing two proportions

2) Will rats go through a maze faster after given caffeine compared to the same rats without caffeine?

Testing a single mean

Testing a mean difference (paired data)

Comparing two means (independent)

Comparing two proportions

Testing a single proportion

3) Is there an association between a person’s sex and GPA?

Testing a single mean

Comparing two means (independent)

Comparing two proportions

Testing a single proportion

Testing a mean difference (paired data)

4)Is there an association between a person’s sex and whether or not a person gets the flu?

Testing a single mean

Comparing two means (independent)

Testing a mean difference (paired data)

Comparing two proportions

Testing a single proportion

5) What does the coin flip accomplish in the Matched Pairs applet and why is that useful?

The coin flip re-randomizes the values of the response variable within each pair, to simulate the null hypothesis of no association between the group and the response variable value, but does not maintain the pairing in the study design.

The coin flip re-randomizes the values of the response variable within each pair, to simulate the alternative hypothesis of an association between the group and the response variable value, but does not maintain the pairing in the study design.

The coin flip re-randomizes the values of the response variable within each pair, to simulate the null hypothesis of no association between the group and the response variable value, maintaining the pairing in the study design.

The coin flip re-randomizes the values of the response variable within each pair, to simulate the alternative hypothesis for an association between the group and the response variable value, maintaining the pairing in the study design.

Comparing two means (independent)

Explanation / Answer

Ans:

1)Testing a single mean

2)Testing a mean difference (paired data)

3)Comparing two means (independent)

4)Comparing two proportions

5)The coin flip re-randomizes the values of the response variable within each pair, to simulate the null hypothesis of no association between the group and the response variable value, maintaining the pairing in the study design.

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