## Answers

Ans: first Concider the Table as: a) Relative foewency Ideal Noi of children fa fx² histo for the gram ideal number of children fneweney Cf) 12 27 527 262 64 1) ។ 4. 27 2108 2358 1024 275 2 3 4 5 6 7 8 9 10 Is 27 1054 786 256 55 24 28 8 Relative trewency 0.013 0-03 0.58 0.3 0.07 0.012 0.0044 0.0044 0.0018 0 0.0022 0.000 144 196 64 0 2 20 11 200 121 Ifa2 6517 = 2269 Corrospording chilchrana Shape of the distribution OA. The dish button is Skewed night b) Mode is the maximum If = 915 2 fx freaweney Corner of to . The mode ideal numbers of children is 12 The mean numben of childreng is I fixi: 2269 = 2.48 The Standard deviation number of chifdren is # Itixina] [6517-91562.48399 0.97 d) A lange Sample Size is needed to perfonon' any inference negarding this problem.

Because OB The data are Symmetric N 915 914 2.48-2.69 76.55 Ho : M = 2.69 Hi : ut 2.69. Text Statistic to 8 X-M value = 0.000 One 0.97/1915 P

So, Thene Conclusion for the test is • B. Reject to because the prave is less than the of 20:05 Tevel of significance is Sufficient edivenele atle level of significance to conduct conclude that people's belief as to the ideal ao of children have chansed.

.
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