# stats 230-summer 2014

Feb 3rd, 2012
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this is 100% score document the pdf is the questions and the word document shows each question and answer. this document is the questions and the answers have been posted below

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Stat 230Summer 2014 - Final ExamPlease answer all 30 questions. Make sure your answers are as complete as possible. Show all of your work and reasoning. In particular, when there are calculations involved, you must show how you come up with your answers with critical work and/or necessary tables. Answers that come straight from program software packages will not be accepted.You must include the Honor Pledge on the title page of your submitted final exam. Exam submitted without the Honor Pledge will not be accepted.Honor Pledge: "I have completed this final examination myself, working independently and not consulting anyone except the instructor. I have neither given nor received help on this final examination."Use the information below to answer Questions 1 through 3.Given a sample size of 34, with sample mean 660.3 and sample standard deviation 104.9, we perform the following hypothesis test. Since n>30, this is a Z test.Null HypothesisH0 : m = 700Alternative HypothesisHa : m 7001. What is the test statistic? What is the p-value? t = [x- ? ] / [ s / sqrt( n ) ]2. At a 5% significance level (95% confidence level), what is the critical value(s) in this test? Do we reject the null hypothesis? 3. What are the border values of x between acceptance and rejection of this hypothesis? Page 1Stat 230Summer 2014 - Final ExamQuestions 4 through 7 involve rolling of dice.4. Given a fair, six-sided die, what is the probability of

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