Based on the article entitled "Driven by Electric-Vehicle Demand, Firms focus on Cobalt," which panel below best describes what was occurring in the market for cobalt (where the subscripts "1" and "2" refer to the initial demand or supply and then subsequent demand or supply, respectively)?Graph is drawn in the question

Alarge university wanted to study the relationship between completing an internship during college and students' future earning potential. prom the same graduating class, they selected a random sample of 80 students who completed an internship and 100 students who did not complete an internship and examined their salaries five years after graduation. they found that there was a statistically higher mean salary for the internship group than for the noninternship group. which of the following interpretations is the most appropriate? a. there could be a confounding variable, such as student major, that explains the difference in mean salary between the internship and no internship groups.b. we cannot infer anything from these data since the distribution of salaries is likely right skewed.c. you cannot draw any valid conclusions because the sample sizes are different.d. more students should complete internships because having an internship produces a higher salary.

As more people migrated west during the gold rush, what do you think happened to the demand curve in most western markets, holding all else constant? a. there was no shift, nor any increase or decrease in quantity demanded. b. there was no shift, but there was a decrease in quantity demanded. c. the demand curve shifted to the left. d. the demand curve shifted to the right. e. there was no shift, but there was an increase in quantity demanded.

Nicholas makes $2,000 per month. he spends $300 on credit card payments and $350 on an auto loan. what is his debt-to-income ratio? 17.5 percent 22 percent 2.7 percent 32.5 percent