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QuizCh10Solutions

# QuizCh10Solutions - j Math 350 — Quiz Chapter 10 —...

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Unformatted text preview: j Math 350 — Quiz Chapter 10 — Chi-Square Hypothesis Testing Printed Name: z: 5 i Calculators are allowed on this quiz...neighbors are not! Show work for credit. The manager at a local coffee shop wants to learn about the distribution of the type of coffee ordered. The manager wishes to test to see if the three coffee types are ordered equally often, with a signiﬁcance level of a 1 0.05. A sample of 120 customers was obtained and the number of customers ordering each of the three types of coffee was recorded. the observed counts are as follows: H0: m way a... ordeal ﬁgural!» d/(ZCA ............................................................................................................................ ”334:2 mu cxlcaﬂ \$8!) Eﬁwj Z) : 0,0894%... r ............................................................................................................................. Test Statistic (round to 3 places after the decimal) a - L .. L .. 0 1 .. L we , +2” may) 22% 1;: =48: REJECT Ho FAIL TO REJECT Ho Decision ACCEPT H 0 Dr. Emmert Summer 2011 I of I Points Earned [:I of 10 ...
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