The Pew survey results were gathered from telephone and face-to-face interviews conducted under the direction of Gallup — a Washington, DC, based analytics and advisory company.
An tattara sakamakon binciken Cibiyar Pew ta hanyar waya da gaba-da-gaba da hirar da aka yi bisa umarnin Kamfanain Gallup wanda yake a birnin Washington, DC