The Table Below Summarizes Results from an Experiment in Which

question 47

Multiple Choice

The table below summarizes results from an experiment in which subjects were classified as asthmatic or nonasthmatic and then given a treatment. After the treatment, they were again classified as asthmatic or nonasthmatic. Using the
Values of the test statistic and critical value for a 0.05 significance level, what do you conclude?

• A) Fail to reject the null hypothesis that the following proportions are equal: (1) The proportion of asthmatics who were nonasthmatic after the treatment; 1) the proportion of nonasthmatics who were asthmatic after The treatment. The treatment does not appear to be effective.
• B) Reject the null hypothesis that the following proportions are unequal: (1) The proportion of asthmatics who were nonasthmatic after the treatment; 1) the proportion of nonasthmatics who were asthmatic after The treatment. The treatment appears to be effective.
• C) Fail to reject the null hypothesis that the following proportions are unequal: (1) The proportion of asthmatics who were nonasthmatic after the treatment; 1) the proportion of nonasthmatics who were Asthmatic after the treatment. The treatment does not appear to be effective.
• D) Reject the null hypothesis that the following proportions are equal: (1) The proportion of asthmatics who were nonasthmatic after the treatment; 1) the proportion of nonasthmatics who were asthmatic after the Treatment. The treatment appears to be effective.

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Definitions:

Quaternary Ammonium

Ionic compounds containing a central nitrogen atom bonded to four organic groups and one additional anion, known for their disinfectant properties.

Primary Amine

A compound with one (primary) amino group attached to the main carbon chain.

Imine

Organic compounds characterized by a nitrogen atom double-bonded to a carbon atom, with the carbon also attached to a hydrogen or another carbon group.

Amide

A functional group characterized by a carbonyl group (C=O) linked to a nitrogen atom.