Answer Happy

Use the given degree of confidence and sample data to construct a confidence interval for the population mean . Assume that the population has a normal distribution n = 12, R = 28.3, s = 4.8, 99% confidence 24.01 < < 32.59 24.53 <u < 32.07 23.91 < u < 32.69 24.00 << 32.60 Question 13 (Mandatory) (4 points) Use the given information to find the minimum sample size required to estimate an unknown population mean . How many women must be randomly selected to estimate the mean weight of women in one age group. We want 90% confidence that the sample mean is within 3.7 lb of the population mean, and the population standard deviation is known to be 28 lb. O 155 153 12.4 13