The television landscape has changed as networks compete with streaming services such as Netflix and Hulu. Suppose that CBS plans to conduct interviews with television viewers in an attempt to estimate the proportion of viewers in the 18–49 age group who watch “most” of their television on network television as opposed to streaming services. CBS wishes to have 95% confidence and a margin of error in its estimate of

{0.03. A pilot sample of size 50 was selected, and the sample proportion was 0.61. To achieve these results with a simple random sample, how many additional viewers should be sampled?