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user100 [1]
3 years ago
5

Scenario B. David sees an ad for a new pesticide that is supposed to get rid of bugs in his garden better than the brand he curr

ently uses. He decides to test this out by using the new pesticide on one half of his garden, and the pesticide he normally uses on the other half of the garden, and then counting the number of bugs he finds on his plants. What is the alternative hypothesis for this study? Be sure to pay attention to whether it is directional or non-directional. a. Ha: # of bugs with the new pesticide < # of bugs with the old pesticide b. Ha: # of bugs with the new pesticide = # of bugs with the old pesticide c. Ha: # of bugs with the new pesticide > # of bugs with the old pesticide d. Ha: # of bugs with the new pesticide # of bugs with the old pesticide
Social Studies
1 answer:
balandron [24]3 years ago
5 0

Answer:

b. Ha: # of bugs with the new pesticide = # of bugs with the old pesticide  

Explanation:

As seen in the question above, the new insecticide may have better results than the old insecticide that David used in his garden. To find out if this is true, David decides to spray one side of the Garden with the new insecticide and spray the other side of the garden with the old insecticide, so that he can count which of the two insecticides killed more insects and thus determine which of the products is more efficient.

To determine efficiency, David's chances are:

  • # of bugs with the new pesticide < # of bugs with the old pesticide  
  • # of bugs with the new pesticide > # of bugs with the old pesticide  

However, it is necessary to consider an alternative hypothesis, where the evaluation of the results is null. Thus, the alternative hypothesis for David's experiment is:

  • # of bugs with the new pesticide = # of bugs with the old pesticide

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