How big is your family? A survey asked a sample of 2780 adults how many children they had, and also how many siblings (brothers and sisters) they had. The results are summarized in the following contingency table. Siblings 0 1 2 3 More than 4 Send data to Excel Part: 0/2 Part 1 of 2 Siblings 0 1 2 3 0 63 177 176 119 56 More than 4 60 (a) Compute the expected frequencies under the null hypothesis. Round your answers to two decimal places. 0 4 57.13 1 20 61 61 42 15 23 58.36 176.60 176.72 n 118.36 40.36 20.74 Number of Children 2 3 36 16 103 45 102 67 33 30 34.66 61.25 102.35 19.90 Number of Children 46 30 17 12 2 3 100.71 67.46 32.56 33.26 45.80 4 8 30 27 18 13 14 15.51 10.28 30.18 14.88 4 30.35 More than 4 5 21 18 12 5 9.65 3 9.86 More than 4 5.98 29.86 17.37 17.66 20.00 11.64 5.62 5.74

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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How big is your family? A survey asked a sample of adults how many children they had, and also how many siblings (brothers and sisters) they had. The results are summarized in the following contingency table. Compute the expected frequencies under the null hypothesis. Round your answers to two decimal places
How big is your family? A survey asked a sample of 2780 adults how many
children they had, and also how many siblings (brothers and sisters) they
had. The results are summarized in the following contingency table.
Siblings
0
1
2
3
4
More than 4
Send data to Excel
Part: 0 / 2
Part 1 of 2
Siblings
0
1
2
3
4
0
63
177
176
119
56
More
than 4
60
0
176.60
176.72
1
20
61
61
57.13
42
15
23
58.36
(a) Compute the expected frequencies under the null hypothesis. Round
your answers to two decimal places.
1
20.74
118.36 40.36
Number of Children
2
3
36
16
103
102
67
33
30
2
Number of Children
45
46
30
17
34.66
61.25 102.35 45.80
100.71
12
67.46
32.56
3
15.51
4
8
30
19.90 33.26 14.88
27
18
13
14
4
10.28
30.35
29.86
30.18
20.00
□ 9.65
More than 4
9.86
5
21
18
12
5
3
More
than 4
5.98
17.66
17.37
11.64
5.62
5.74
X
Transcribed Image Text:How big is your family? A survey asked a sample of 2780 adults how many children they had, and also how many siblings (brothers and sisters) they had. The results are summarized in the following contingency table. Siblings 0 1 2 3 4 More than 4 Send data to Excel Part: 0 / 2 Part 1 of 2 Siblings 0 1 2 3 4 0 63 177 176 119 56 More than 4 60 0 176.60 176.72 1 20 61 61 57.13 42 15 23 58.36 (a) Compute the expected frequencies under the null hypothesis. Round your answers to two decimal places. 1 20.74 118.36 40.36 Number of Children 2 3 36 16 103 102 67 33 30 2 Number of Children 45 46 30 17 34.66 61.25 102.35 45.80 100.71 12 67.46 32.56 3 15.51 4 8 30 19.90 33.26 14.88 27 18 13 14 4 10.28 30.35 29.86 30.18 20.00 □ 9.65 More than 4 9.86 5 21 18 12 5 3 More than 4 5.98 17.66 17.37 11.64 5.62 5.74 X
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