Use the following to answer the question(s) below.
Chris Columbus is responsible for controlling inventory levels for four types of sailboats sold by his company. Chris takes a sample of 48 boats sold over the past several months to determine if demand is the same for each type. His results are as follows:
Type of Boat Sales
Pirate's Revenge 15
Jolly Roger 11
Sails Delight 10
Cruiser Cove 12
-The calculated value of the Chi Square statistic is
A) 7.815
B) 1.17
C) 22.35
D) -1.17
E) 12.56

Question

Quizplus · Accepted Answer

The Chi Square statistic is calculated using the formula: χ² = Σ((O-E)²/E), where O is the observed frequency and E is the expected frequency. With 48 boats and 4 types, the expected frequency for each type is 12. The calculation yields a Chi Square value of 1.17.

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