The following data gives the number of deaths due to accidental falls occurring in in the United States by Month
in 1970.
Month Number of deaths
Jan 1668
Feb 1407
Mar. 1370
Apr. 1309
May 1341
June 1338
July 1406
Aug. 1446
Sept. 1332
Oct. 1363
Nov. 1410
Dec 1526
(a) Using Stata or otherwise, calculate the expected number of deaths for each month if the probability of
accidental death is the same for each month. Report the results in a table.
(b) Is the data consistent with a uniform probability of death from accidental fall over time? Justify your answer
with the results from an appropriate statistical test.
(c) Is there evidence of a seasonal pattern of deaths? Explain why.
in 1970.
Month Number of deaths
Jan 1668
Feb 1407
Mar. 1370
Apr. 1309
May 1341
June 1338
July 1406
Aug. 1446
Sept. 1332
Oct. 1363
Nov. 1410
Dec 1526
(a) Using Stata or otherwise, calculate the expected number of deaths for each month if the probability of
accidental death is the same for each month. Report the results in a table.
(b) Is the data consistent with a uniform probability of death from accidental fall over time? Justify your answer
with the results from an appropriate statistical test.
(c) Is there evidence of a seasonal pattern of deaths? Explain why.