Assuming that the population standard deviation is given as 48.9. The sample statistics are n=19 and mean = 58.2. Then, the resulting 95% confidence interval for population mean is: O a. 43.84 < μ< 72.56 O b. 39.75 < p < 76.65 O c. 36.21 < p < 80.19 O d. 29.26 < μ< 87.14

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