The following data are the monthly salaries y and the grade point averages x for students who obtained a bachelor's degre in business administration. GPA Monthly Salery (S) 2.6 3,600 3.5 3,800 3.6 4,200 3.1 3,000 3.5 4,100 2.9 2,400 The estimated regression equation for these data is y - 490 + 987.5x and MSE =333,719. a. Develop a point estimate of the starting salary for a student with a GPA of 3.0 (to 1 decimal). 3452.5 b. Develop a 95% confidence interval for the mean starting salanry for all students with a 3.0 GPA (to 2 decimals). C. Develop a 95% prediction interval for Ryan Dailey, a student with a GPA of 3.0 (to 2 decimals).
Permutations and Combinations
If there are 5 dishes, they can be relished in any order at a time. In permutation, it should be in a particular order. In combination, the order does not matter. Take 3 letters a, b, and c. The possible ways of pairing any two letters are ab, bc, ac, ba, cb and ca. It is in a particular order. So, this can be called the permutation of a, b, and c. But if the order does not matter then ab is the same as ba. Similarly, bc is the same as cb and ac is the same as ca. Here the list has ab, bc, and ac alone. This can be called the combination of a, b, and c.
Counting Theory
The fundamental counting principle is a rule that is used to count the total number of possible outcomes in a given situation.
Parts a, b, and c please
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