Exhibit 12-3 In Order to Determine Whether or Not a Particular Medication

question 68

Multiple Choice

Exhibit 12-3
In order to determine whether or not a particular medication was effective in curing the common cold, one group of patients was given the medication, while another group received sugar pills. The results of the study are shown below. We are interested in determining whether or not the medication was effective in curing the common cold.
-Refer to Exhibit 12-3. The test statistic is

• A)10.08
• B)54.02
• C)1.96
• D)1.645

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Definitions:

Confidence Interval

A stretch of values, resulting from sample analytics, projected to envelop the value of a hidden attribute in a population.

Population Proportion

The ratio of members within a subset to the total number of members in a population.

Stratified Random Sampling

A method of sampling that involves dividing a population into smaller groups, known as strata, that share similar characteristics, and then randomly selecting members from each stratum for study.

Chi-Square Distribution

A statistical distribution used in hypothesis testing that is applicable to variables measured on an interval scale, often used to analyze categorical data.