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Teaching Sociology (July 1995) developed a model for i the professional socialization of graduate students working toward their doctorate. One of the dependent variables modeled was professional confidence. y, measured on a 5-point scale. The model included over 20 independent variables and was fitted to data collected for a 1 sample of 309 graduate students. One concern is whet he^ multicollinearity exists in the data. A matrix of Pearson product moment correlations for ten of the independent variables is shown on page 622. [Note: Each entry in the table is the correlation coefficient r between the variable in the corresponding row and corresponding column.]
a. Examine the correlation matrix and find the independent variables that are moderately or highly correlated.
b. What modeling problems may occur if the variables, part a, are left in the model? Explain
A student wants their College to offer Kickboxing classes as a Physical Education class. To justify that the class is desired he surveys 200 students and finds that 56% would be interested in taking the class.
In a completely dark room with ten chairs, six people come and occupy six chairs at random. What is the probability that at least one of three specific chairs gets occupied?
The users are then timed in their ability to setup and program the DVD by performing a series of operations. Which statistical analysis technique should be used? What is the null hypothesis? Can the market researcher get an answer? Why or why not?
You have to determine that your cutoff value at level a = 0.05 is 1.645 when testing whether the mean of a population is significantly different from 1.5. If you calculate a test statistic of 1.8 what is the proper conclusion?
Six different categories of transportation risk were discussed in the chapter. Identify these categories, describe them, and give transportation examples for each risk categories.
how do you find chi square left and chi square right using the ti-84 plus given that you know the confidence level
Eighty-eight shoppers were interviewed at random, and 59 said that they prefer to shop alone.
The assumption of independent error terms in regression analysis is often violated when using time series data and is called the problem of Autocorrelation.
Perform a 2-sample t-test to see if the population male and female average salaries could be equal to each other - Since the one and two sample t-test results provided different outcomes, which is the proper/correct apporach to comparing ..
Using the scatter diagram (no calculations), would you estimate the linear correlation coefficient to be positive, close to zero, or negative?
Use normal approximation to determine probability that x = 2. Illustrate all work.
between 4 and 9 pm cars place orders at the drive through window of the tiki takeout restaurant once every 5
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