Because of the rising costs of construction accidents many construction firms have instituted safety courses.Employees are encouraged to take these courses designed to heighten safety awareness.A company is trying to decide which one of two courses to institute.To help make a decision,eight employees take course 1 and another eight take course 2.Each employee writes a test,which is marked,out of a possible 25.The results are shown below.Does this data provide sufficient evidence at the 5% level of significance to conclude that the marks from course 2 are higher than those of course 1? Assume that the scores are not normally distributed. 
Definitions:
Labor Force
The total number of people employed or actively seeking employment in a country or region.
Labor Force
The total number of people employed or actively seeking employment in a given economic territory or nation.
Structurally Unemployed
individuals who are unemployed due to structural changes in the economy that make their skills or industries obsolete.
Consumer Price Index
A measure that examines the weighted average of prices of a basket of consumer goods and services, typically used as an indicator of inflation.
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