What are the main causes for reasoning with uncertainty? a. Intrinsic noise b. Infinite amount of data c. Insufficient detailed knowledge of conditions and circumstances d. Insufficient computational methods for reasoning with certainty e. Both "a" and "c" f. All of the above.
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- A sample of 350 Mathematicians is selected and several variables are recorded. Which of the following statements is correct? Mathematician's monthly income is a ratio level data. Socioeconomic status (recorded as “low income”, “middle income”, or “high income" is nominal level data. The number of field or subject of specialization is a continuous variable. The primary field of study is ordinal level data.ANOVA. Dr. Milgramm is conducting a patient satisfaction survey, rating how well her patients like her on a scale of 1-10. Her patients tend to fall into three categories: “Like a lot”, “like somewhat”, and “dislike a lot”. She believes that she might get different satisfaction scores from people in each group, but (because she's not great at numbers) she wants you to do an ANOVA to be sure. She has collected data from 12 patients (three equal groups) with the following results. Group 1) “Like a lot” Mean: 8 SS: 2 N: df: Group 2) “Like somewhat” Mean: 5 SS: 6 N: df: Group 3) “Dislike a lot” Mean: 2 SS: 4 N: df: Grand Mean: df Within-Group:__________ df Between-Groups:___________ Estimated Variance (S21) for Group 1: _______ Estimated Variance (S22) for Group 2: ___________ Estimated…How do I find the upper and lower limit?
- What statistical test would a researcher use to test the following research hypothesis: Individuals who report less favorable attitudes toward the police are more likely to be sentenced to higher security prisons. Attitudes measured as 1 = very favorable, 2 = somewhat favorable, 3 = somewhat not favorable, and 4 = not at all favorable. Sentences measured as 1 = minimum, 2 = medium, and 3 = maximum.Course: StatisticsIn a study conducted, 3,000 people were surveyed, of which 2,400 work more than 40 hours a week and of these, it has been established that 70% suffer from some sleep disorder, while of those who work less than 40 hours, ONLY 35% suffer from some disorder. According to these data, it is correct to state that:I. 1,890 of respondents suffer from sleep disorders.II. 390 people are those who work less than 40 hours a week and do NOT suffer from sleep disorders.III. 37% of the people studied do NOT suffer from sleep disorders.Select one:a. Only Ib. Only IIc. Only IIId. I and IIIe. I, II and IIINEED SOLUTION ASAP!!
- Required Information [The following information applies to the questions displayed below.] Davis Stores sells clothing in 15 stores located around the southwestern United States. The managers at Davis are considering expanding by opening new stores and are interested in estimating costs in potential new locations. They believe that costs are driven in large part by store volume measured by revenue. During a discussion, one of the managers suggests that number of employees might be better at explaining cost than store revenues. As a result of that suggestion, managers collected the following information from last year's operations (revenues and costs in thousands of dollars): Store 101 182 103 184 105 Req D1 106 107 108 109 110 111 112 113. 114 115 Intercept Employees Costs $5,740 3,565 5,600 4,327 3,689 2,777 2,821 2,318 2,124 3,090 2,329 5,973 5,257 3,220 5,411 Req D2 Employees 51 49 51 35 38 26 35 37 24 29 28 56 53 53 50 Revenues $2,724 5,096 5,183 2,240 5,519 2,846 3,349 6,340 3,646…Which of the following is not true regarding internal validity and external validity1. It’s OK for a study to have low internal validity, but it’s not OK for a study to have low external validity 2. It’s OK for a study to have low external validity, but it’s not OK for a study to have low internal validity 3. Internal validity is the foundation for external validity4. External validity is the foundation for internal validityState the alternative hypotheses for the following claim: Although Americans account for only 4% of the world population, they account for 35% of the world’s suicide with a firearm. State the alternative hypotheses for the following claim: Although Americans account for only 4% of the world population, they account for 35% of the world’s suicide with a firearm. p ≠ .35 p = .35 p ≥ .35 p < .35
- (e) Interpret the decision in the context of the original claim. Does it appear that peanut candies have weights that vary more than those of plain candies? O A. Since the null hypothesis is rejected, the weights appear to vary more for peanut candies. OC. Since the null hypothesis is not rejected, the weights appear to vary more for peanut candies. O B. Since the null hypothesis is not rejected, the weights do not appear to vary more for peanut candies. O D. Since the null hypothesis is rejected, the weights do not appear to vary more for peanut candies.What is the base rate(or prevalence in medical literature) and sensitivity(the percentage of individuals with a disease who are correctly classified as having the disease?)Describe a potential example of a "repeated measures t-tests" (see Ch. 11) that could be conducted within the social sciences, and list what you believe the outcome of the research would be for this study. No data or calculations are necessary whatsoever, but you should describe why you developed your chosen hypothesis (e.g., based on your own understanding of current research, real world observations, a wild guess, etc.).