The following table shows the results of a study on smoking and three illnesses. We are interested in determining if the proportions smokers in the three categories are different from each other.
a.Provide the null and the alternative hypotheses.
b.Determine the expected frequencies.
c.Compute the sample proportions.
d.Compute the critical values (CVij).
e.Give your conclusions by providing numerical reasoning.
Definitions:
Freight Costs
Freight costs are the charges involved in the transportation of goods from one place to another, often resulting from shipping or logistic operations.
Machine
A piece of equipment, generally powered mechanically, electrically, or digitally, used in the manufacturing or productive process.
Equipment Account
An account on the balance sheet that reports the value of equipment a company owns, less any accumulated depreciation.
Discount Taken
A reduction in the billed amount by a buyer, often for early payment, as an incentive from the seller.
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