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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- 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 IIIoption d. for the last question is D. The P-value is greater than the level of significance so there is not sufficient evidence to conclude the new system is effective.
- As suggested in your assigned readings this week, researchers in psychology who are attempting to make a causal claim typically prioritize ________ over ___________ validity. Group of answer choices internal; external internal; statistical external; internal construct; internalPROBLEM:A research study was conducted to examine the differences between older and younger adults on perceived life satisfaction. A pilot study was conducted to examine this hypothesis. Ten older adults (over the age of 70) and ten younger adults (between 20 and 30) were give a life satisfaction test (known to have high reliability and validity). Scores on the measure range from 0 to 60 with high scores indicative of high life satisfaction; low scores indicative of low life satisfaction. The data are presented below. Compute the appropriate t-test. older Adults Younger Adults INSTRUCTIONS: 1. State the null 45 34 and alternative hypotheses. 2. State the level of 38 22 52 15 significance and 48 27 critical value. 3. Calculate the 25 37 ttest. 39 41 4. Interpret the result. 51 24 5. State conclusion. 46 19 NOTE: Please show your complete solution but you can opt to using excel to compute for the ttest. You can handwrite your aniswers or encoded whichever you prefer. 55 26 46 36Plz answer without plagiarism .is this correct?.
- Symbolically state the alternative hypotheses for the following claim: The mean salary for registered nurses in San Diego, California is greater than is $104,000.Management of a major company has made the following assumptions regarding their consumer profile. Over 60% of all shoppers are women Less than 40% of our customer primarily make purchases through online resources The average age of the purchasers of product B is below 45 years. The average weekly purchase of the top selling product A exceeds $50. The company hired market researchers to determine the validity of their consumers' demographic assumptions. The researchers conducted survey and focus groups to evaluate the purchasing pattern of the company's current consumers. In a survey of 400 consumers, 252 respondents were women and 148yrespondents indicated they purchase the company's products online. The average age of the respondents was 44 years with standard deviation of 10 years. The average weekly purchase of top selling products A and B by the respondents were $52 with standard deviation of $10.5 and $60 with standard deviation of $22.0 respectively. Determine which of the…Can I have a detailed, step-by-step explanation for part (d) & part (e) of the following question? Thank you very much!