Introduction to Business Statistics
7th Edition
ISBN: 9781111792374
Author: WEIERS
Publisher: Cengage Learning
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Chapter 12.5, Problem 12.79E
To determine
To draw the conclusion about the given experiments using the provided output
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A snack company is switching to
environmentally friendly bags for its potato chips. The company is testing whether thenew bags are too hard to open.Product testers ask 25 randomly chosen subjects to open the new bags and another 25 randomly chosen subjects to open the old
bags. They note the time it takes all subjects
to open the bags.
What type of data collection method was
used here?
This experiment examines the performance, as measured by the number of errors made, on a motor skills task. 24 subjects, 12 young and 12 old, were assigned to either an easy or hard motor skills task.
There were 2 factors in the study: age (young/old) and difficulty of the motor skills task (easy/hard). The number of errors made on the motor skills task was recorded for each person and is presented in the table below.
Null and Alternative Hypotheses:
H0: There is not an interaction between young and old
H0: µYoung = µOld
H1: There is an interaction between young and old
H1: µYoung ≠ µOld
H0: There is not an interaction between easy and hard
H0: µEasy = µHard
H1: There is an interaction between young and old
H1: µEasy ≠ µHard
H0: There is not an interaction between age and difficulty
H0: µAge = µDifficulty
H1: There is an interaction between age and difficulty.
H1: µAge ≠ µDifficulty
My question: Report the results of the hypothesis tests below. Be sure to express the results in the…
Chapter 12 Solutions
Introduction to Business Statistics
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