- A Researcher Wishes To See If There Is A Difference In The Length Of Time That The Scent Is Effective For Four Different 1 (27.83 KiB) Viewed 27 times
A researcher wishes to see if there is a difference in the length of time that the scent is effective for four different types of natural air freshener (A, B, C, and D). The length of time (in days) for each type is shown in Table Q3. Table Q3: Length of time (in days) for four different types of natural air freshener B D 32 24 32 31 29 24 30 29 A 35 34 34 33 28 31 28 с 25 26 27 29 28 Is there sufficient evidence at the 0.05 level of significance to conclude that there is a difference in mean length of time that the scent is effective among four different types of natural air freshener.