The mean age of all 2550 students in a small community college is 22.8 years with a standard deviation of 3.2 years, and the distribution is non-normal. A random sample of 12 students' age is...

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Extracted text: The mean age of all 2550 students in a small community college is 22.8 years with a standard deviation of 3.2 years, and the distribution is non-normal. A random sample of 12 students' age is obtained, and the mean is 23.2 years with a standard deviation of 2.4 years. The shape of the sampling distribution of the sample mean for the sample size n = 12 will be: O a. Normal because the population distribution is non-normal. O b. Normal because the sample size is large enough. O. Non-Normal because the sample mean is larger than the population mean. O d. Non-Normal because the sample size is too small.