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Q1) Human resources director, on learning about regression effect, decides to hire people who have been fired by their earlier employer for poor performance. He argues that regression effect says people who do very poorly in their previous job tend to perform well in their next job .
Is this what the regression effects? Describe in detail.
Q2) Analyze sample set of statistics using statistical test of my choosing. Data corresponds to a group of clients suffering with mental illness. Experimental group went through educational program where they were taught independent living skills like culinary arts, vocational readiness, nutrition, computer skills, healthcare management, mental health management, etc... Control group didn't go through educational program. 0's and 1's tell us whether or not clients acquired specific skill sets.
What sample size would be needed to obtain an error of ±10 square millimeters with 99 percent confidence?
A scientist examined the effect of temperature and catalyst on the yield of a reaction. He ran the experiment at both 150° and 200°C with two types of catalyst.
At the 0.05 level of significance, is there evidence of a significant relationship between the age groups and where people primarily get their news? If so explain the relationship.
Enter data into SPSS (use two columns: one for coding {0, 1, 2, 3, 4, 5} and one for DV)
If the voice identifications were made by random guess, find the probability that all 9 victims would select the same person?
It is known that 60 percent of all registered voters in the 42nd congressional District are Republicans. There registered voters are selected at random from the district. Compute the probability that exactly 2 of the 3 selected are Republicans, u..
Using a 1% level of significance, can the hypothesis that the distributions for the student's scores are identical be accepted?
Which of following statements would be right concerning a twotail test at 0.05 level of significance? We can conclude that average cottage cheese consumption in America is at least 0.705 pound more or less than 2.75 pounds per person per year.
It has been claimed that women live longer than men; however, men tend to be older than their wives. Ages of sixteen husbands and wives from England were obtained. The null hypothesis of equality of means is rejected. What conclusion can be made f..
Conduct a statistical test to determine if the sample is representative of the population.
The sample mean of the number of spots on the 6000 rolls, should be about If this die is rolled 6000 times, the number of times we get a 2 or a 3 should be about
Obtain a test statistic and p -value assuming equal variances. Interpret these results.
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