A child psychologist believes that children perform better on tests wh

Question

A child psychologist believes that children perform better on tests when they are given perceived freedom of choice. To test this belief, the psychologist carried out an experiment in which 200 third graders were randomly assigned to two groups; A and B. Each child was given the freedom to choose a text booklet from many with various drawings on the covers. The performance of each child was rated as very good, good and fair. The results are summarized in table provided. Test using chi-square whether there is sufficient evidence in the data to support the psychologist’s belief:

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24 Nov 2020

Answer :

Word Count : 130

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	A	B	Total
Very Good	32	29	61
Good	55	61	116
Fair	10	13	23
Total	97

57	56	81	60	63	62	55	53
60	72	87	62	78	67	77	63
70	62	92	91	88	80	78	73
88	79	80	80	76	74	70	83
55	56	71	71	87	82	80	93

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57	56	81	60	63	62	55	53
60	72	87	62	78	67	77	63
70	62	92	91	88	80	78	73
88	79	80	80	76	74	70	83
55	56	71	71	87	82	80	93

57	56	81	60	63	62	55	53
60	72	87	62	78	67	77	63
70	62	92	91	88	80	78	73
88	79	80	80	76	74	70	83
55	56	71	71	87	82	80	93

57	56	81	60	63	62	55	53
60	72	87	62	78	67	77	63
70	62	92	91	88	80	78	73
88	79	80	80	76	74	70	83
55	56	71	71	87	82	80	93