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Which of the following are necessary conditions to perform inference in regression? (Select all that apply). Select one or more: There should not be any extreme outliers that influence the results unduly. The standard deviation of the values of y around the regression line should be the same regardless of the values of x. The distribution of the values around the regression line should have a normal distribution. The values of x should NOT have a correlation with the values of y. The x values must have a normal distribution centered at 0. The values of y must have a normal distribution centered at 0.
Calculate the correlation coefficient, coefficient of determination. Check whether there is a relation between correlation coefficient and coefficient of determination.
Salary information for a random sample of male and female employees of a large company is shown below.
A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 30.
A new president at Big State University has made student satisfaction with the enrollment and registrations process one of her highest priorities.
Consider the following age data, which is the result of selecting a random sample of 20 United Airlines pilots.
At the .05 significance level, can we conclude that the mean waiting time is less than 3 minutes?
Give an example of a null and alternative hypotheses. This can be a personal item or something at work. Additionally, identify the Type I and Type II Errors that could occur with your decision-making process.
Make a graph to visualize the problem and state, without doing the calculations, whether the p-value of the test
Here are the DMS odor thresholds for 10 untrained students:
Finding the probability of each event in a group of events of different possibility
schedulingscheduling is explicitly part of our lives. we schedule everything and need to in order to plan our
Assuming the weight of cereal is normally distributed, determine the likelihood that a package will contain more that 12.2 ounces?
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