We obtain the following demand curve of beef in a market with 25 observations: Q with hat on top equals 654.121 - 3.144 P, where Q is quantity demanded of beef measured in pounds, P is price measured in dollars per pound. The standard error of the slope coefficient is 1.521. We want to test the null hypothesis beta subscript 2 equals negative 4 versus the alternative it is not. What is the t-value you calculate for the test

The quinoa seed is in high demand in wealthier countries such as the u.s. and japan. approximately 97% of all quinoa production comes from small farmers in bolivia and peru who farm at high elevations—8,000 feet or higher. the seed is considered highly nutritious. mostly grown and harvested in bolivia and peru, and sold to markets in other countries, the seed is now considered an important for these nations. the governments of bolivia and peru are hopeful that this product will increase the quality of life of their farmers.