You hold a diversified portfolio consisting of a $10,000 investment in each of 15 different common stocks (i.e., your total investment is $150,000). The portfolio beta is equal to 1.3 . You have decided to sell one of your stocks which has a beta equal to 0.8 for $10,000. You plan to use the proceeds to purchase another stock which has a beta equal to 0.9 . What will be the beta of the new portfolio?