49. According to a survey of the top 10 employers in a major city in the Midwest, a worker spends an average of 413 minutes a day on the job. Suppose the standard deviation is 26.8 minutes and the time spent is approximately a normal distribution. What are the times that approximately 68.26% of all workers will fall? A. [394.8 431.2] B. [386.2 439.8] C. [372.8 453.2] D. [359.4 466.6] E. [332.6 493.4]