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A counselor is interested in determining if there is a relationship between children's scores on the racial attitude and preference test and their scores on the racial socialization test. She sampled a group of 10 children yielding the following results:
Racial Attitude and Preference Test Scores (X)
8 7 9 5 10 2 5 7 6 12
Racial Socialization Test Scores (Y)
2 3 1 10 0 12 9 7 8 1
Calculate and interpret the slope, y intercept, regression equation, regression coefficient, and coefficient of determination.
Find the relative risk for moderate beer drinkers as compared to nondrinkers, finds the 95% confidence interval
Mean and standard deviation are 584.6 and 34.28
Compute the standard error of the mean O(funny o with line) line over x, for sample sizes of 50, 100, 15o, and 200. What can you say about the size of the standard error of the mean as the sample size is increased?
Find the value of the standard normal random variable z, called z 0 such that:
Suppose we conduct an ANOVA test of four treatment means and reject the null hypothesis. Construction of a confidence interval for the difference between the first and second sample mean revealed the interval to be 10 plus or minus 12. We conclude
A Taguchi experiment is to be performed on the effects of lift, bore, stroke, and compression on engine performance with horsepower as the outcome variable. The factors were tested at each of the following levels in hopes of improving engine horse..
Discuss the fields in which Poisson distribution is applied. Why does it matter whether a population of arrivals is limited or unlimited?
Describe the sampling distribution of the sample proportion
When comparing data from different distributions, what is the benefit of transforming data from these distributions to conform to the standard distribution?
The national average SAT score (for Verbal and Math) is 1028. If we assume a normal distribution with σ = 92, what is the 90th percentile score? What is the probability that a randomly selected score exceeds 1200?
Suppose that you perform a significance test regarding a population mean and that the evidence does not warrant rejection of the null hypothesis.
The level of significance is quantitatively defined as ? and the statistical power of a test is quantitatively defined as 1-?
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