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The director of human resources at an automobile assembly plant is not satisfied with the performance of recently hired employees. To improve matters, he decides to use an employment test to screen applicants. A group of 14 new applicants is given the test and hired. Three months later they receive their first on the-job ratings by supervisors. The correlation between test scores and job ratings is found to be .41. Can the director of human resources claim that the test successfully predicts job performance? Use a = .05 and a two-tailed test.
In statistics, it is important to pay very close attention to language. The following statements are wrong but can be corrected by substituting one word.
Conduct the experiment described in the Scenario with 40 students from your class, adding other people if necessary to bring the total up to 40. What proportion of your sample was righteye dominant?
Find a website related to your major (Criminal Justice) that summarizes data and uses graphs, and share it with the class. Let us know how it relates to your major and why it is of interest to you.
a six-sigma black belt quality control engineer found that in a random sample of 140 printed circuit boards 18 are
"A job in an insurance office involves telephone conversations with policyholders. The office man- ager estimates that about half of the employee's time is spent on the telephone.
a datset is provided on a 3 factor factorial on the amount of rot on a potatoe crop. the variables aretype of
Public Health and Nutrition Magnesium is used by every cell in your body, is required for over 300 biochemical reactions, and helps muscles and nerves function.
we flip a fair coin 10 times. what is the conditional probability of getting 10 heads given that the number of heads is
1. a batch of 100 motors has been manufactured and andy and bob are applying a standard stress test to them. andy is
Calculate the test statistic and the df - Write a conclusion, addressing the research question. Your conclusion should include an interpretation of the 95% confidence bound which is given in the above output
Explain the basic role that between-sample variation and within-sample variation play in carrying out an analysis of variance.
Select five of the risks you identified in your Week 2 assignment and create a titled section for each of them in your paper. Ensure that at least one of the risks you select is a positive risk (an opportunity). In that titled section, be sure t..
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