4. Two groups of urses were observed to determine what proportion of time they spend on the job performing 6 different tasks. In particular, nurses are observed at random over several days and each observation results in a mark being given to one of the six categories. A table summarizing the counts for the number of times that each group was ob- served performing each task is shown below. At the a = 0.05 level of significance, test if the distribution of time performing the tasks is the same among the two groups of nurses. Task Category Group A B C D E F 95 36 71 21 45 32 153 26 43 18 32 28

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Exponential Growth Model

The relation that represents an exponential function is: