Homework Answers
Question 18:
30
The sample size of 30 is large enough when the population distribution is roughly bell shaped. That's why the minimum sample size will be 30.
Question 23:
0.012
since, we assume our default level of significance as 0.05. Here, only 0.012 is less than 0.05. That's why 0.012 could have been the P-value.
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its wrong
Student loans: In an article from September 13, 2010, titled "Student Loan Default Rates Increase," the website ed.gov analyzes trends in default rates for student loans over time. For the year 2008, the default rate for graduates was 7%. Suppose that we select random samples from this population of graduates from 2008. For each sample we calculate the proportion who defaulted on their loans. What is the minimum sample size necessary for the sampling distribution to be approximately...
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Two random samples of student loans were collected: one from students at for-profit schools and another from students at non-profit schools. The accompanying data show the sample sizes and the number of loans in each sample that defaulted. Complete parts a through c. Click the icon to view the loan data. a. Perform a hypothesis test using a = 0.10 to determine if the proportion of for-profit loans that default is larger than the proportion of loans for nonprofit schools...
Two random samples of student loans were collected: one from students at for-profit schools and another from students at non-profit schools. The accompanying data show the sample sizes and the number of loans in each sample that defaulted. Complete parts a through c. Click the icon to view the loan data. a. Perform a hypothesis test using a = 0.10 to determine if the proportion of for-profit loans that default is larger than the proportion of loans for nonprofit schools...
Question 6.3.14 In an article titled "Unilateral Nostril Breathing Influences Lateralized Cognitive Performance" that appeared in Brain and Cognition (1989), researchers Block et al. published results from an experiment involving assessments of spatial and verbal cognition when breathing through only the right versus left nostril. The subjects were 30 male and 30 female right handed introductory psychology students who volunteered to participate in exchange for course credit. Initial testing on spatial and verbal tests revealed the following summary statisticS Note...
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Read the attached article. Do you feel one style of banking
control is more stable than the other? Why? Does one banking method
minimize market volatility and risk better or is it just packaged
differently? Do you feel the US (Western) Banking system can better
control the patterns of behavior going forward that have caused
economic damage in the past? Should the Fed continue its stimulus
policy, reduce it or abandon it entirely (Google some recent
articles to research this)? (Please...
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