Age CULs | Freq | Rel Freq p(x) | x * p(x) |
---|---|---|---|
4 | 5987 | 0.12 | 0.49 |
9 | 5746 | 0.12 | 1.06 |
14 | 6055 | 0.12 | 1.74 |
19 | 5909 | 0.12 | 2.31 |
24 | 4597 | 0.09 | 2.27 |
29 | 3695 | 0.08 | 2.20 |
34 | 3134 | 0.06 | 2.19 |
39 | 2700 | 0.06 | 2.16 |
44 | 2468 | 0.05 | 2.23 |
49 | 2313 | 0.05 | 2.33 |
54 | 1953 | 0.04 | 2.17 |
59 | 1577 | 0.03 | 1.91 |
64 | 1023 | 0.02 | 1.35 |
69 | 511 | 0.01 | 0.72 |
74 | 425 | 0.01 | 0.65 |
79 | 558 | 0.01 | 0.91 |
Sums: | 48651 | 1.00 | 26.7 |
The frequency table on the right presents preliminary data from the 2010 FSM census for Chuuk state. The class width is five years, the number of residents in Chuuk is reported for each five year class. For part one, use this table.
On All Hallows Evening seventy groups of children came to the house to ask for candy. A study of the number of children per group showed that for the sample size n of 70 groups, the mean number of children per group x was 4.9 with a standard deviation sx of 4.2. For the purposes of this test, pretend that the data is continuous data and that the data is normally distributed. Use the functions of chapter seven to solve the following questions.
Use the formulas and techniques of chapters 8 and 9.12 for the following questions. Use the sample size, mean, and standard deviation from part II. Presume that the data is normally distributed.