# Question

Stress levels were recorded during a true answer and a false answer given by each of six people in a study of lie-detecting equipment, based on the idea that the stress involved in telling a lie can be measured. The results are shown in Table 16.4.4.

a. Was everyone’s stress level higher during a false answer than during a true answer?

b. How many had more stress during a true answer? During a false answer?

c. Find the modified sample size.

d. Use the nonparametric sign test for the differences to tell whether there is a significant difference in stress level between true and false answers.

a. Was everyone’s stress level higher during a false answer than during a true answer?

b. How many had more stress during a true answer? During a false answer?

c. Find the modified sample size.

d. Use the nonparametric sign test for the differences to tell whether there is a significant difference in stress level between true and false answers.

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