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In: Statistics and Probability

An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and...

An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and unloading riders more efficiently. Two alternative loading/unloading methods have been proposed. To account for potential differences due to the type of ride and the possible interaction between the method of loading and unloading and the type of ride, a factorial experiment was designed. Use the following data to test for any significant effect due to the loading and unloading method, the type of ride, and interaction. Use a= 0.05 . Factor A is method of loading and unloading; Factor B is the type of ride.

Type of Ride
Roller Coaster Screaming Demon Long Flume
Method 1 44 53 48
46 45 44
Method 2 48 45 51
50 41 47

Set up the ANOVA table (to whole number, but p-value to 2 decimals and F value to 1 decimal, if necessary).

Source of Variation Sum of Squares Degrees of Freedom Mean Square F    P-value
Factor A 1 1 1 0.1 0.75
Factor B 2
Interaction
Error
Total

Solutions

Expert Solution

Result:

An amusement park studied methods for decreasing the waiting time (minutes) for rides by loading and unloading riders more efficiently. Two alternative loading/unloading methods have been proposed. To account for potential differences due to the type of ride and the possible interaction between the method of loading and unloading and the type of ride, a factorial experiment was designed. Use the following data to test for any significant effect due to the loading and unloading method, the type of ride, and interaction. Use a= 0.05 . Factor A is method of loading and unloading; Factor B is the type of ride.

Type of Ride

Roller Coaster

Screaming Demon

Long Flume

Method 1

44

53

48

46

45

44

Method 2

48

45

51

50

41

47

Set up the ANOVA table (to whole number, but p-value to 2 decimals and F value to 1 decimal, if necessary).

Excel Addon Megastat used.

Two factor ANOVA

FactorB

Means:

Roller Coaster

Screaming Demon

Long Flume

Method 1

45.0

49.0

46.0

46.7

Factor A

Method 2

49.0

43.0

49.0

47.0

47.0

46.0

47.5

46.8

2

replications per cell

ANOVA table

Source

SS

   df

MS

F

   p-value

Factor A

0.33

1

0.333

0.03

.8611

Factor B

4.67

2

2.333

0.23

.7988

Interaction

60.67

2

30.333

3.03

.1229

Error

60.00

6

10.000

Total

125.67

11

To test the effect of Factor A, calculated F=0.03, P=0.8611 which is > 0.05 level of significance. Ho is not rejected. Factor A is not significant.

To test the effect of Factor B, calculated F=0.23, P=0.7988 which is > 0.05 level of significance. Ho is not rejected. Factor B is not significant.

To test the effect of interaction, calculated F=3.03, P=0.1229 which is > 0.05 level of significance. Ho is not rejected. Interaction is not significant.

( Note: report the results with required decimals)


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