Practice Exam 1 – ISA 225
Put simply: there’s three categories of problems that you need to be ready to face on your exam. Within each of those three categories, you … Read More
Question #11 Explanation | Chi Square – Independence (Hypothesis Test)
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Question #10 Explanation | Chi Square – Goodness of Fit (Hypothesis test)
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Question #6 Explanation | Two-mean t-test (Confidence interval)
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Question #9 Explanation | Two-mean t-test (Hypothesis test)
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Question #8 Explanation | One-mean t-test (Hypothesis test)
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Question #5 Explanation | One-mean t-test (Confidence interval)
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Question #7 Explanation | One-proportion z-test (Hypothesis test)
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Question #4 Explanation | One-proportion z-test (Confidence interval)
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Confidence intervals
Imagine that you’ve just enrolled at Crammer Nation University and finished your first day of classes. You just called it quits on your high school … Read More