Вопросы по дисциплине:
Математические и инструментальные методы поддержки принятия решений
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| № | Вопрос | Действия |
|---|---|---|
| 281 | Robin Inc. feared that the average company loss is running beyond $34,000. It initially conducted a hypothesis test on a sample extracted from its database. The hypothesis was formulated as H0: average company loss $34,000 vs. H1: average company loss > $34,000. The test resulted in favor of Robin Inc.'s loss not exceeding $34,000. Detailed study of company accounts later revealed that the average company loss had run up to $37,896. Which of the following errors were made during the hypothesis test? | Открыть |
| 282 | Type II error occurs when the test: | Открыть |
| 283 | Level of significance is the probability of: | Открыть |
| 284 | The confidence coefficient is denoted by: | Открыть |
| 285 | What is the confidence coefficient when the level of significance is 0.03? | Открыть |
| 286 | Identify the uncontrollable variable from the following inputs of a decision model. | Открыть |
| 287 | Which of the following denotes the power of the test? | Открыть |
| 288 | A regression model that involves a single independent variable is called. | Открыть |
| 289 | Regression models of … data focus on predicting the future. | Открыть |
| 290 | What is the relationship between the age of the furniture and their values? The following table exhibits the age of antique furniture and the corresponding prices. Use the table to answer the following question(s). (Hint: Use scatter diagram and the Excel Trendline tool where necessary). Number of years Value ($) 78 930 91 1010 83 970 159 1950 134 1610 210 2880 88 980 178 2010 124 1370 72 900 | Открыть |