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An experiment is conducted in which 60 participants each fill out a personality test, but not according to the way they see themselves. Instead, 20 are randomly assigned to fill it out according to the way they think a parent sees them (i.e. how a parent would fill it out to describe the participant); 20 as their best friend would fill it out for them; and 20 as the professors they know best would fill it out for them. The main results appear in the table below. Explain these results to a person who has not taken a course in statistics.
refer to the following frequency distribution for questions 1 2 3 and 4.the frequency distribution below shows the
Use a regression model with dummy variables as follows to develop an equation to account for seasonal effects in the data. Qtr1 = 1 if Quarter 1, 0 otherwise; Qtr2 = 1 if Quarter 2, 0 otherwise; Qtr3 = 1 if Quarter 3, 0 otherwise.
Prepare a report (see below) with your ranking of the judges based on the probabilities and conditional probabilities as well as the analysis of each court. Include the following seven (7) items in table format to support your ranking. Be sure to use..
A screening test for a newly discovered disease is being evaluated. In order to determine the effectiveness of the new test, it was administered to 900 workers; 150 of the individuals diagnosed with the disease tested positive.
1) A coin is flipped 14 times. Use the normal approximation to the binomial distribution to calculate the probability of a total of 4,5, or 6 heads. Compare this to the binomial probability.
Plot each of the predictors against the response. Plot the predictors against each other. The purpose here is to get a graphical idea of the relationships in the data.
What is the probability that at least one of the flights will be late and why the binomial model is not appropriate for finding the probability that at least one flight will be late.
What was the sample size and how was the data collected? State the meaning of the confidence interval in terms of the specific question or poll.
Calculate the sample size needed given these factors
In a regression analysis, a nurse researcher found a correlation of between pain relief scores and satisfaction with nursing care.
A BusinessWeek/Harris survey asked senior executives at large corporations
Will all three approaches always result in the same conclusion? Explain.
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