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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.
A valid probability model
An insurance representative wants to determine if the proportions of women and men who buy the different policy types are the same. The actual sales results for 50 women and 50 men are
What is Optimal solution? Using Linear Programming or any other methods (Optional) Explain in Detail What does it mean "Optimal Solution"?
Find the 98% confidence interval for the mean number of peaches per tree. How many trees does she need to sample to be accurate within 10 peaches per tree?
What type of damage could occur if you grabbed a door frame with your left arm stepped with your right leg the leg shoots out from under you and you bounce down hitting the edge.
For any hypothesis test, if the value of a parameter being tested falls outside the confidence interval for the same level of a, the correct decision is to reject the null hypothesis. Is this True or False?
You are one space short of winning a child's board game and must roll a 1 dice to claim victory. You want to know how many rolls it might take. Describe how you would simulate rolling the dice until you get 1.
About 40% of the general population donate time and energy to community projects. Suppose 15 people have been randomly selected from a community and each asked whether he or she donates time and energy to community projects.
Using the following data on 15 workers, construct an exact 95% confidence interval for µ.
Construct a 94% confidence interval for the true percentage of smokers among all people who completed four years of college.
Please perform a hypothesis test using a .05 significance level on the following information. Next please perform a regression analysis as well as providing a scattered diagram.
When the necessary conditions are met, a two-tail test is being conducted to test the difference between two populations proportions.
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