Question

dence to evidence This past year, an organization conducted a survey and asked, "What do you think is the ideal number of children for a family to have ?" The results of the survey are shown in the table. Complete parts (a) through (e). Click the icon to view the data table dence to co (a) Construct a relative frequency histogram for the ideal number of children. Choose the correct graph below. OC. OD ОА. Ов. ero @ 061 06 06- 0.6 0.4- 04 04 swered this 02- 02 02 02 0610 68 null hypothesisk estate broker bele Comment on the shape of the distribution. Choose the correct answer below There is sufficiente O A. The tribution is showed right OB. The distribution is skewed left OC The distribution is unvorm OD. The distribution is symmetric Click to select your answers) hilar questions

Answer 1

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.