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The incubation time for a breed of chicks is normally distributed with a mean of 20 days and standard deviation of approximately 3 days. Look at the figure below and answer the following questions. If 1000 eggs are being incubated, how many chicks do we expect will hatch in the following time periods? (Note: In this problem, let us agree to think of a single day or a succession of days as a continuous interval of time, Assume all eggs eventually hatch.) Area Under a Normal Curve 2.35% 13.5% 34% 34% 13.59% 2.35% H- 30 H-20 4+ 20 4 + 30 68% 95% 99.7% (a) in 14 to 26 days chicks (b) in 17 to 23 days chicks (c) in 20 days or fewer :52