Dear Chegg Expert, Can you please set up the 2x2 table labeled correctly? As lon

Question

Dear Chegg Expert,

Can you please set up the 2x2 table labeled correctly? As long as the table is set up correctly, I can calculate the PPV and NPV. I just have trouble setting up and labeling the table.

Thanks in advance. Shani

A new home pregnancy test is available in Broncoville, a town with 100,000 people. The kit is 98% sensitive and 96% specific. The current home pregnancy test available at Bronc?Greens costs $12 each and was 99.9% sensitive and 98% specific. The new home pregnancy test costs $6 each. The prevalence of couples attempting to have a baby in Broncovile is approximately 15.26% per 100,000 persons. Develop a 2 x 2 table and calculate the following: 1. Calculate the Positive Predictive Value (PPV) [1] 2. Calculate the Negative Predictive Value (NPV) [2] Enter only numbers into your answer. Round to two decimal places after completing mathematical operations. Express your answer as a percent but do NOT place a % sign after your answer. Specified Answer for: 1 81.52 Specified Answer for: 2 99.63

Explanation / Answer

For new home pregnancy test,

PPV = 14955/18345 x 100

= 81.52

NPV = 81350/81655 x 100

= 99.63

For current home pregnancy test,

PPV = 15245/16940 x 100

= 89.99

NPV = 83045/83060 x 100

= 99.98

Pregnant Not Pregnant Total Positive 15260x0.98 = 14955 84,740x0.04 = 3390 18345 Negative 15260-14955 = 305 84,740x0.96 = 81350 81655 Total 15260 100,000-15260=84,740 100,000

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