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A fertiliser company has available 80 tonnes of nitrate and 50 tonnes of phosphate to use during the coming week to produce three different types of lawn fertilisers. The mixture ratios and profit are given in the table below . The manager of the company wants to maximise profit from the raw materials currently available and decides that the technique of linear programming should be in the decision making. Define appropriate vectors and matrices to formulate the LP problem as a set of matrix equations.(Do not solve the problem)
Fertiliser
Nitrate (T/1000 bags)
Phosphate (T/1000 bags)
Profit $/1000 bags
Regular Lawn
4
2
1500
Super Lawn
3
2500
Garden Spread
2000
find an online report of a simple research study that includes statistics. you must include website link to the report
Marentette and El-Masri (2011) used logistic regression to identify predictors of obtaining seasonal influenza vaccination among hospital-based nurses in Canada. Their results are shown in table 1:
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Formulate the appropriate null and alternative hypotheses to test the manufacturer's belief. Using the sample mean of 99.2, compute a 90% confidence interval. Show the computation, and interpret in one sentence the interval you compute.
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