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: $$\begin{array} { l l }
\text { Type of Boat } & \text { Sales } \
\text { Pirate's Revenge } & 15 \
\text { Jolly Roger } & 11 \
\text { Sails Delight } & 10 \
\text { Cruiser Cove } & 12
\end{array}$$ At the 0.05 level of significance, the correct conclusion is
A) Evidence suggests that the demand is the same for different types of boats.
B) Evidence suggests that the demand is not the same for different types of boats.
C) Reject the null hypothesis.
D) Both A and C.
E) Both B and C.

Question

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: $$\begin{array} { l l } 
\text { Type of Boat } & \text { Sales } \
\text { Pirate's Revenge } & 15 \
\text { Jolly Roger } & 11 \
\text { Sails Delight } & 10 \
\text { Cruiser Cove } & 12
\end{array}$$ At the 0.05 level of significance, the correct conclusion is
A) Evidence suggests that the demand is the same for different types of boats.
B) Evidence suggests that the demand is not the same for different types of boats.
C) Reject the null hypothesis.
D) Both A and C.
E) Both B and C.

Quizplus · Accepted Answer

The chi-square test statistic is 2.4, which is less than the critical value of 9.49. Therefore, we fail to reject the null hypothesis and conclude that there is not enough evidence to suggest that the demand is not the same for different types of boats.

Chris Columbus Is Responsible for Controlling Inventory Levels for Four