Question

McDonald's claims that its ice cream cones typically weigh 3.18 ounces (converted from grams). Here are the weights, in ounces, of cones purchased on different days from different servers:
4.2, 3.6, 3.9, 3.4, and 3.3 Carry out a sign test to determine whether the median is greater than 3.18 ounces. Use a significance level of 0.05. Why is the sign test a more appropriate choice than the one-sample t-test? See page 654 for guidance.


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  • CreatedJuly 16, 2015
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