The treatments (new menu item) were not randomly assigned to the students when 36 local middle school kids were chosen at random to take part.
Given that,
36 local middle school kids were chosen at random to take part in a taste test to choose a new menu item for a cafeteria. The Cajun potato barrels or the macaroni and cheese were the options offered to each pupil. 20 pupils chose the macaroni and cheese from the sampling, while 16 selected the Cajun potato barrels. On a scale from 1 (very dislike) to 9 (very much like), each student was asked to rank the object they selected (extremely like).
We have to find which of the following keeps this study from being an experiment with a sound design.
Each student was given the option of choosing either the macaroni and cheese or the Cajun potato barrels. Because the students' treatments were not distributed at random, those who preferred their cuisine chose it and gave it high marks. As a result, the study has selection bias.
Therefore, The treatments (new menu item) were not randomly assigned to the students when 36 local middle school kids were chosen at random to take part.
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Answer:
See explanation
Step-by-step explanation:
Statement Reason
1. GKJH is a parallelogram - Given
2. GH║KJ - Definition of the parallelogram
3. ∠HGL and ∠KJL are alternate interior angles - Definition of alternate interior angles
4. ∠HGL≅∠KJL - Alternate interior angles theorem
5. GH≅KJ - Property of parallelogram
6. ∠GLH and ∠JLK are vertical angles - Definition of vertical angles
7. ∠GLH≅∠JLK - Vertical angles thoerem
8. ΔGLH≅ΔJLK - AAS postulate
Answer:
Turn it 90 degrees left or right, basically turn it left or right until it is sideways