To test the difference between two body shop garages, 10 randomly chosen damaged cars were sent to these two garages (A and B). The following are the estimated repair garages of these garages. A B d=A-B 236 310 137 187 379 392 255 232 279 321 321 318 369 389 333 288 137 167 390 432 Assuming that the repair charges are normally distributed Test the hypothesis that the repair charge at garage A is lower than that at garage B, state your assumptions. Construct a 95% C.I of the difference between the two means.
To test the difference between two body shop garages, 10 randomly chosen damaged cars were sent to these two garages (A and B). The following are the estimated repair garages of these garages. A B d=A-B 236 310 137 187 379 392 255 232 279 321 321 318 369 389 333 288 137 167 390 432 Assuming that the repair charges are normally distributed Test the hypothesis that the repair charge at garage A is lower than that at garage B, state your assumptions. Construct a 95% C.I of the difference between the two means.
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