Problem 2 includes questions 14- 20. Refer to the work_hrs. xlsx dataset. In this problem, we want to examine the effect of wage, education (EDUC), and number of children (NCHILD) on the hours worked per week by married women (HRSWORK). The dataset contains only married women. Estimate the linear regression model. Do not use log transformations to solve this problem.

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

Solve the problem. a student earned grades of c, a, b, and a in four different courses. those courses had these corresponding numbers of credit hours: 4, 5, 1, and 5. the grading system assigns quality points to letter grades as follows: a = 4, b = 3, c = 2, d = 1, and f = 0. compute the grade point average (gpa) and round the result to two decimal places. 3.40 3.50 8.75 2.18