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Robin works in an ice cream shop that serves chocolate, vanilla and strawberry flavored ice cream. Customers can choose to have their ice cream in a cup, a sugar cone or a waffle cone.
The following table shows the sorted record of orders made in a week.
Robin sets out to test whether the flavor of ice cream ordered is independent from the type of container chosen.
Write down the null and alternative hypothesis for this test.
State the number of degrees of freedom for the appropriate test.
Calculate the χ2 value.
The critical value for this test is χ2=13.3.
State with justification the conclusion to the test.
Robin works in an ice cream shop that serves chocolate, vanilla and strawberry flavored ice cream. Customers can choose to have their ice cream in a cup, a sugar cone or a waffle cone.
The following table shows the sorted record of orders made in a week.
Robin sets out to test whether the flavor of ice cream ordered is independent from the type of container chosen.
Write down the null and alternative hypothesis for this test.
State the number of degrees of freedom for the appropriate test.
Calculate the χ2 value.
The critical value for this test is χ2=13.3.
State with justification the conclusion to the test.