A data set contains three points, and two of the residuals are -10 and -20. What is the third residual?
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- You need to use Stata to look up the dataset and its variables. Use Stata Companion Textbook. (Dataset: NES. Variables: spend8, [pw=nesw].) The NES dataset contains spend8, which records the number of government policy areas where respondents think spending should be increased. Scores range from 0 (the respondent does not want to increase spending on any of the policies) to 8 (the respondent wants to increase spending on all eight policies). The NES, of course, polls a random sample of U.S. adults. In this exercise you will analyze spend8 using the mean and lincom commands. You then will draw inferences about the population mean. (Remember to specify nesw as the probability weight.) The spend8 variable has a sample mean of ______. Make sure you use [pw=nesw] so your results are nationally representative. There is a probability of .95 that spend8’s true population mean falls between a score of ______ at the low end and a score of ______ at the high end. A student researcher…You are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 160 men, and 15% own cats.You sample 60 women, and 20% own cats.Find the test statisticYou are testing the claim that the proportion of men who own cats is larger than the proportion of women who own cats.You sample 180 men, and 75% own cats.You sample 100 women, and 60% own cats.Find the test statistic.
- Describe when you would use an independent samples t-test versus a dependent samplest-test.Example females was Rs. 4,200. The mean salary of all the employees was Rs. 5,000. Find the percentage of male and female employees. The average salary of male employees in a firm was Rs. 5200 and that ofWhy does the use of multiple t tests increases?
- How do I find the standardized z-score?how do you find the coefficient of determination with only data points?The boxplot below shows salaries for CPAS and Actuaries in a town. СРА Actuary 20 30 40 50 60 70 80 90 100 110 Salary (thousands of $) If a person is making the third quartile salary for a CPA, they are making less than % of Actuaries.
- What is the dependent and independent variable in the sentence below? What is the relationship between genderand A level of exam results?R2 represents the proportion of the variance of the error term that is explained by the independent variable. True/FalseA researcher tests whether his students are smarter than the general population. He knows the mean of the population is 100 for the Wechsler Adult Intelligence Scale. He tests the mean of his student’s scores against the mean of the population. What kind of t-test should be used?