In a regression analysis of a first-order model involving 3 predictor variables and 25 observations, the following estimated regression equation was developed.



= 10 - 18x1 + 3x2 + 14x3



also, the following standard errors and the sum of squares were obtained.



sb1 = 3 sb2 = 6 sb3 = 7
sst = 4800 sse = 1296


the p-value for testing the significance of the regression model is

a.
less than .01.

b.
between .025 and .05.

c.
between .01 and .025.

d.
greater than .10.

Mrs. julien’s and mrs. castillejo’s classes are selling cookie dough for a school fundraiser. customers can buy packages of macadamia nut chip cookie dough and packages of triple chocolate cookie dough. mrs. julien’s class sold 25 packages of macadamia nut chip cookie dough and 30 packages of triple chocolate cookie dough for a total of $221.25. mrs. castillejo’s class sold 5 packages of macadamia nut chip cookie dough and 45 packages of triple chocolate cookie dough for a total of $191.25. (a) write the system of equations that model the problem. be sure to explain which equation represents which situation. (b) find the cost of each type of cookie. show your work. (c) explain which method you used to solve the system and why you chose that method.

How many square inches are in 60 square feet?

From a group of 10 men and 8 women, 5 people are to be selected for a committee so that at least 4 men are on the committee. howmany ways can it be done?