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A sample of 26 offshore oil workers took part in a siμlated escape exercise, and their time (in sec) to complete the escape was recorded. Which of the following statistical methods is appropriate for analyzing this data?

a) Chi-square test
b) One-sample t-test
c) Regression analysis
d) Analysis of variance (ANOVA)

User Kekekeks
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1 Answer

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Final answer:

Without further information on the analysis goals, none of the listed statistical methods (Chi-square test, One-sample t-test, Regression Analysis, ANOVA) appears to be a perfect fit for analyzing the time data of oil workers completing a simulation exercise. Additional context is required for a proper recommendation.

Step-by-step explanation:

To decide which statistical method is appropriate for analyzing the sample data of 26 offshore oil workers and their time to complete a simulated escape exercise, we need to understand the nature of the data and the objectives of the analysis.

The Chi-square test is generally used for categorical data to test relationships between variables, hence, it is not suitable for this scenario where we are dealing with numerical time data. A One-sample t-test could be used if we were comparing the sample mean to a given population mean, but since there is no indication that we are comparing against a specific mean, this may not be the appropriate test either.

Regression analysis is used to predict the value of a dependent variable based on the value of one or more independent variables. This is usually the choice when wanting to understand the relationship between variables and not just comparing means. In our case, we are not predicting or establishing a relationship, rather we are interested in analyzing the completion times.

Focusing on the Analysis of Variance (ANOVA), this method is specifically used when comparing the means of three or more groups. Despite having one group, if the goal were to compare different conditions within this group, a one-way ANOVA might be used; however, there is no indication of this being the case here.

If the goal was simply to summarize or describe the data, basic descriptive statistics such as mean, median, range, and standard deviation would be appropriate. But if a more complex analysis is needed, additional details would be necessary to choose the correct statistical method.

Without additional information about the specific objectives of the analysis, it's challenging to definitively select the best method. However, in general terms and based on the information provided, none of the listed methods seems to be a perfect fit. A deeper understanding of the research objectives would be essential to provide a more accurate recommendation.

User Simon Tenbeitel
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