By Echo Wang (Reuters) – Wall Street ended lower on Friday amid concerns about rising Treasury yields and the prospect of more Fed rate hikes. “Ninety-five percent of the driver of the market right now is long-term interest rates,” said Jay Hatfield, founder and chief executive of Infrastructure Capital Management in New York. The Labor Department presented stronger-than-expected jobs data with nonfarm payrolls increasing by 428,000 jobs in April, versus expectations of 391,000 job additions, underscoring the economy’s strong fundamentals despite a contraction in gross domestic product in the …