A developmental psychologist is examining problem solving ability for grade school children. Random samples of 5-year-old, 6-year-old,...

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A developmental psychologist is examining problem solvingability for grade school children. Random samples of 5-year-old,6-year-old, and 7-year-old are obtained and a set of problems aregiven to them. The number of errors is reported below.
Number of errors
5-year-olds
6-year-olds
7-year-olds
32
31
18
31
21
21
24
19
24
15
18
21
34
30
20
23
26
16
17
25
15
18
23
26
21
18
17
20
15
18
19
24
17
30
25
15
A.Â Â Â Â Â Â Â Â State theIndependent Variable and the Dependent Variable.
B.Â Â Â Â Â Â Â Â State the nullhypothesis in words and symbols.
C.Â Â Â Â Â Â Â Â Compute theappropriate statistic.
D.Â Â Â Â Â Â Â Â What is yourdecision?
E.Â Â Â Â Â Â Â Â Â Statethe full conclusion in words, after computing,if necessary multiple comparisons .

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3.5 Ratings (345 Votes)

A herethe Independent Variable age of school children and the Dependent Variable number of errors B the null hypothesis in words is there is no difference between the age of children See Answer

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5-year-olds	6-year-olds	7-year-olds
32	31	18
31	21	21
24	19	24
15	18	21
34	30	20
23	26	16
17	25	15
18	23	26
21	18	17
20	15	18
19	24	17
30	25	15