Suicide Rate
The folowing lists the number of suicides per month in 1970 with
the number of days in that month, according
to the National Center for Health Statistics. Is there any evidence
that the suicide rate varies seasonally, or are the data consistent with
the hypothesis that the rate is constant? (Hint: Conduct a goodness of fit
test. State your assumptions. Look at the signs (negative/positive)
of the deviations O_i - E_i (where O_i is the observed number in a month
and E_i is the expected number. ) Is there a pattern?)
Data
- January
- 1867, 31 days
- Feb.
- 1789, 28
- March
- 1944, 31
- April
- 2094, 30
- May
- 2097, 31
- June
- 1981, 30
- July
- 1887, 31
- August
- 2024, 31
- Sept.
- 1928, 30
- Oct.
- 2032, 31
- Nov.
- 1978, 30
- Dec.
- 1859, 31
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