Chris Columbus is responsible for controlling inventory levels for four types of

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:

Type of boat Sales
Pirates Revenge 15
Jolly Roger 11
Sails Delight 10
Cruiser Cove 12

1.)
At the 0.05 level of significance, the correct conclusion is
I. Evidence suggests that demand is the same for different types of boats.
II. Evidence suggests that the demand is not the same for different types of boats.
III. Reject the null hypothesis.
A)I only B)II and III C)III only D)I and III E)II only

2.)
The correct null hypothesis to be tested is
I. Type of boat and demand are related.
II. The demand differs for each type of boat.
III. The demand is the same for each type of boat.
A)I and III B)I only C)III only D)II only E)I and II


3.)
The calculated value of the chi square statistic is
A)7.815. B)22.35. C)-1.17. D)12.56. E)1.17.

4.)
The model predicted distance= 3.30+ 0.235

Explanation / Answer

1
E)II only
2
B)I only
3
C)-1.17.
4
B)345.0

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