The function
- Use the model
to predict the population of the town after four years. (1 mark)
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- A new function,
, models a population where but decreases at half the rate of at any point in time. - State a sequence of two transformations that maps
to this new model . (2 marks)
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- In the town, 100 people were randomly selected and surveyed, with 60 people indicating that they were unhappy with the roads.
- Determine an approximate 95% confidence interval for the proportion of people in the town who are unhappy with the roads.
- Use
for this confidence interval. (2 marks)
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- A new sample of
people results in the same sample proportion. - Find the smallest value of
to achieve a standard deviation of for the sample proportion. (1 mark)
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