03:37 Question 2 presi.pdf 4 A sociological study was conducted to determine whether there was a...
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03:37 Question 2 presi.pdf 4 A sociological study was conducted to determine whether there was a significant difference in the earnings of four groups of employees working in financial institutions, according to their level of education, in the first year of their employment. For this purpose, data were used on the annual income (in thousand BGN) of four groups of employees, according to their level of education. Denmark is presented in the following table: Level of educati secondary education Professional Master's Bachelor Bachelor on degree Employees 1 11,5 12,5 14,5 17,5 2 10,5 15,2 13,2 16,9 3 12,6 13,6 12,3 18,8 4 15,4 15,4 15,7 22,7 5 14,7 16,1 17,8 19,9 6 11 12,4 13,6 23 Use a significance level of = 0.05 to test the claim that there is no difference in the annual earnings of the four groups of employees. Question 3 A large industrial enterprise carries out its main production activity in 10 of its divisions (branches). A safety inspector visits each branch of 20 employees every quarter to conduct relevant training. The number of working hours for safety training (X) and the number of working hours lost due to production accidents (Y) are presented in the table for each subsidiary: 03:37 Question 2 presi.pdf 4 A sociological study was conducted to determine whether there was a significant difference in the earnings of four groups of employees working in financial institutions, according to their level of education, in the first year of their employment. For this purpose, data were used on the annual income (in thousand BGN) of four groups of employees, according to their level of education. Denmark is presented in the following table: Level of educati secondary education Professional Master's Bachelor Bachelor on degree Employees 1 11,5 12,5 14,5 17,5 2 10,5 15,2 13,2 16,9 3 12,6 13,6 12,3 18,8 4 15,4 15,4 15,7 22,7 5 14,7 16,1 17,8 19,9 6 11 12,4 13,6 23 Use a significance level of = 0.05 to test the claim that there is no difference in the annual earnings of the four groups of employees. Question 3 A large industrial enterprise carries out its main production activity in 10 of its divisions (branches). A safety inspector visits each branch of 20 employees every quarter to conduct relevant training. The number of working hours for safety training (X) and the number of working hours lost due to production accidents (Y) are presented in the table for each subsidiary:
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