Statistical Analysis with SPSS 1.Solve the problem using SPSS for each question. 2. Save the contents

Statistical Analysis with SPSS

1.Solve the problem using SPSS for each question.

2. Save the contents of the data window and the output window

QUESTION ONE

It is hypothesized that women with dark hair- Group 1 (brunettes) are more intelligent than those with blonde hair- Group 2 (blondes ). In order to test this hypothesis, a group of 25 blondes and 25 brunettes were given an IQ (intelligence) test. The IQ scores for the two groups are given below.

You will need to do the following:

1.1 Produce descriptive statistics and normality information for the two groups.

1.2 Carry out the appropriate statistical test to test the hypothesis.

Group 1	Group 2
106	109
95	105
91	99
101	95
102	110
98	106
92	108
102	105
100	101
97	100
98	109
106	105
95	99
91	95
101	110
102	106
98	108
92	105
102	101
100	100
97	110
106	102
108	98
105	92
101	100

1.3 COMPLETE the following.

GROUP 1 Mean_______________ Std. Dev._____ _____________

GROUP 2 Mean____________ Std. Dev.______ __________

1.4 Are the distributions of the data in each of the two groups normally distributed?

DESCRIBE the distributions.

_______

1.5 WHICH statistical test should you use to analyse the differences between the two groups? EXPLAIN the reasons for your choice (include comments about whether the assumptions of the test were met or not)

___________________________________________________ __

1.7

The result of the statistical test is t =_______, df = ______and p = _____

1.8

STATE your conclusions in words. ____________

save the contents of the data window as A: ASSIGN1Q1.SAV

save the contents of the output window as A: ASSIGN1Q1.SPO

QUESTION TWO

It is hypothesized that Chiropractic students (Group 1), Radiography students (Group 2) and Homeopathy students (Group 3) will all get different results on the same anatomy test. In order to test this hypothesis, groups of students wrote the same examination. The test scores for the three groups of students are given below.

2.1 Provide the descriptive statistics for the three groups.

2.2 Carry out the appropriate statistical tests to test the hypothesis.

Group 1	Group 2	Group 3
17	16	24
20	11	17
23	13	30
25	10	15
20	16	21
16	9	28
25	16	20
17	11	30
17	13	24
20	10	17
23	16	30
25	9	15
20	16	21
16	11	28
25	13	20
17	10	30
20	30	16
23	15	9
25	21	16
20	28	9

2.4 STATE the following for each group.

GROUP 1 Mean_________________ Std.Dev._________________

GROUP 2 Mean____________ Std.Dev.____________________

GROUP 3 Mean_______________ Std.Dev.__________________

2.5 WHICH statistical test should you use to analyse the differences between the 3 groups?

EXPLAIN the reasons for your choice of answer

_____ . ________________________________________________________

2.6.

The result of the statistical test is F = _______, df = ________, p = ______

2.7

EXPLAIN your conclusion in words.

___ _______

save the contents of the data window as A: ASSIGN1Q2.SAV

save the contents of the output window as A: ASSIGN1Q2.SPO

QUESTION 3.0

It is hypothesized that people take longer to exercise in the morning than they do in the evening . In order to test this hypothesis, a single group of 20 students were asked to exercise in the morning and at night. The amount of time (in minutes) that it took for the individuals to exercise are provided in the table below.

Individuals	Morning exercise times	Evening exercise times
1	34	38
2	22	29
3	27	37
4	30	40
5	36	27
6	32	32
7	38	43
8	36	37
9	35	29
10	33	26
11	34	16
12	24	31
13	38	26
14	37	27
15	38	34
16	29	22
17	37	27
18	40	30
19	36	27
20	32	32