Black Jennings Swanson Wilson 88 87 88 80 80 78 79 82 76 81 68 59 68 82 81 73 99 96 82 86 66 96 81 87 82 84 94 85 83 Use a = 0.05 and test for a significant difference among the rating for these instructors. State the null and alternative hypotheses. O H: Not all populations of teaching evaluations are identical. H All populations of teaching evaluations are identical. O H,: Median, = Median, = Median, - Medianw H: Median, = Median, = Mediang # Median %3D %3D O H Median, - Median, = Median, = Median H: Median, < Median, > Median, > Median %3D %3D O H All populations of teaching evaluations are identical. H Not all populations of teaching evaluations are identical. O H,: Median, = Median, = Median, = Median H: Median, = Median, = Median = Median,
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
The second slide is the first part of the question and the first slide is the second part of the question.
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