The accompanying data are the times (in seconds) that it took a sample of employees to assemble a toy truck at a Cole Industries assembly plant. Assembly times are normally distributed. At the 10% level, can we conclude that the mean assembly time for this toy truck is not equal to 3 minutes? Use Ha: µ ≠180 seconds as the alternative hypothesis
Data : 190 180 181 208 198 199 176 174 183 188 165 198