STATISTICS F/BUSINESS+ECONOMICS-TEXT
13th Edition
ISBN: 9781305881884
Author: Anderson
Publisher: CENGAGE L
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Chapter 13.5, Problem 31E
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 α = .05.
| Type of Ride | |||
| Roller Coaster | Screaming Demon | Log Flume | |
| Method 1 | 41 | 52 | 50 |
| 43 | 44 | 46 | |
| Method 2 | 49 | 50 | 48 |
| 51 | 46 | 44 |
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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 ? = 0.05.
Type of Ride
Roller Coaster
Screaming Demaon
Log Flume
Method 1
41
52
50
43
44
46
Method 2
49
50
48
51
46
44
Find the value of the test statistic for method of loading and unloading.
Test statistic=??
Find the p-value for method of loading and unloading. (Round your answer to three decimal places.)
p-value = ??
State your conclusion about method of loading and unloading.
-Because the p-value ≤ ? = 0.05, method…
An experimenter is interested in the effects of two independent variables onself-esteem. What is better about conducting a factorial experiment thanconducting two separate experiments, one for each independent variable?
A researcher is examining the effects of weight status and hunger on eating behavior. In this 2 X 2 factor study, participants (obese vs. normal weight) are randomly assigned to participate in one of two hunger status conditions (full stomach vs. empty stomach). Then during the study, participants are presented with crackers to eat. The researcher is looking to see if weight status, hunger status and an interaction between the two influence eating behavior. Considering this data, what would be the statistical and null hypothesis for the main effect for weight status?
Select one:
a. H1: μobese = μnormal weight Ho: μobese ≠ μnormal weight
b. H1: μfull stomach ≠ μempty stomach Ho: μfull stomach = μempty stomach
c. H1: μfull stomach = μempty stomach, Ho: μfull stomach ≠ μempty stomach
d. H1: μobese ≠ μnormal weight Ho: μobese = μnormal weight
Chapter 13 Solutions
STATISTICS F/BUSINESS+ECONOMICS-TEXT
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