Each observation in a random sample of 97 bicycle accidents resulting in death was classified according to the day of the week on which the accident occurred. Data consistent with information given on the web site www.highwaysafety.com are given in the following table. Day of Week Frequency Sunday Monday Tuesday Wednesday Thursday Friday Saturday 13 13 12 14 15 16 14 Based on these data, is it reasonable to conclude that the proportion of accidents is not the same for all days of the week? Use a= .05.

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.