content area top Part 1 Identify the type of observational study (cross-sectional, retrospective, or prospective) described below. A research company uses a device to record the viewing habits of about 2500 households, and the data collected over the past 6 years will be used to determinenbsp whether nbspthe proportion of households tuned to a particular sports programnbsp increased. Question content area bottom Part 1 Which type of observational study is described in the problem statement? A retrospective study A prospective study A cross dash sectional study