Question

4. In a study of cereal leaf beetle damage on oats, researchers measured the number of beetle larvae per stem in small plots of oats after randomly applying one of two treatments: no pesticide or Malathion at the rate of 0.25 pound per acre. Control: 24 3 4 2 3 3 53 2 63 Treatment:011212112111 Is there significant evidence at the 19% level that the mean number of larvae per stem is reduced by Malathion? Carry out a complete test.

Answer 1

Control Ereat 3 . 33 1.1于 2. 1.23 m 12 3.33- hypothesfs There & Subbeetent eviolence that mean number ot lauae pea stem reclused by Mata hton