It appears that people who are mildly obese are less active than leaner people. One study looked at the average number of minutes per day that people spend standing or walking. Among mildly obese people, minutes of activity is normally distributed with mean 373 minutes and standard deviation of 67 minutes. What proportion of mildly obese individuals spend between 350 and 380 minutes per day standing or walking? The first step is to find the z-scores of 350 and 380. These scores are -0.34 and 0.10, respectfully. Then, the proportion is . Please choose the correct answer from the following choices:
Answer choices:

0.5398

0.10 – (-0.34) = 0.44

0.3669 – 0.5398 = -0.1729

0.5398 - 0.3669 = 0.1729