Is the mean weight of regular Coke less than the mean weight of regular Pepsi? To...
Is the mean weight of regular Coke less than the mean weight of
regular Pepsi? To test this claim, independent sets of cans of each
brand were selected for testing. The sample statistics are
summarized in the table below. The distributions of weights of
regular Coke and regular Pepsi are approximately normal, and
population variances are not equal. At the 5% significance level,
what is the appropriate conclusion?
a) Reject the null hypothesis; reject the claim that the mean
weight of regular Coke is less than the mean weight of regular
Pepsi.
b) Reject the null hypothesis; support the claim that the mean weight of regular Coke is less than the mean weight of regular Pepsi.
c) Fail to reject the null hypothesis; reject the claim that the mean weight of regular Coke is less than the mean weight of regular Pepsi.
d) Fail to reject the null hypothesis; support the claim that
the mean weight of regular Coke is less than the mean weight of
regular Pepsi.
Regular Coke
n1= 15
x̄1 = 0.8168
s1 = 0.0075
Regular Pepsi
n2 = 10
x̄2 = 0.8241
s2 = 0.0057
Homework Answers
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Is the mean weight of regular Coke less than the mean weight of
regular Pepsi? To...
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Data on the weights (lb) of the contents of cans of diet soda versus the contents of cans of the regular version of...
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B??
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