Topic: Estimation of Parameter PLEASE DROP A FULL SOLUTION

Answer the following problems: Note: The numerical (final) answers should be rounded off to three decimal places. 1. Test the hypothesis that the average content of containers of a particular brand of cooking oil is less than 10 liters if the contents of a random sample of 10 containers are 10.2, 9.7, 10.1, 10.3, 10.1, 9.8, 9.9, 10.4, 10.3 and 9.8 liters. Use a 0.01 level of significance and assume that the distribution of contents is normal. (25 points) 2. A random sample of 15 school children was taken and the weights (in kg) are 40, 35, 38, 41, 45, 44, 47, 50, 32, 33, 42, 46, 39, 31 and 48. Assume the weights are approximately normal, establish a 95% confidence interval for the population mean weight of the school children. (15 points) 3. Two hundred graduating students are selected and it is found that 114 will be awarded the first class honors degrees. Calculate the 96% confidence interval for the proportion of the graduating students who will receive the first class honors degrees. (15 points) Type here to search