an analyst that 20% of all publicly traded companies will experiance a decline in earning next year. The analyst has developed a ratio to help forcast this decline. if the company is headed fo a decline, there is a 70% chance that this ratio will be negetive. if the company is not headed for a decline, there is a 15% chance that the ratio will be negetive. the analyst randomly selects a company and its ratio is negetive. What is the posterior probability that the company will experiance a decline