Quantitative methods answer in 20minutes or less please

As are allocated based on the details provided. Refreshing Water Supplies (RWS) produces bottles of carbonated water. When operating correctly, the company produces bottles whose contents weigh, on average, 25 ounces. A random sample of nine bottles from a single production run yielded the following content weights (in ounces): 25.5; 24.7; 24.8; 25.6; 25.8; 25.1; 24.7; 25.3; 25.9. Assuming that the population distribution is normal. Test at the 5% level against a two-sided alternative. i) Formulate the null and alternative two-tailed hypotheses. (4 Marks) ii) Calculate the sample mean. (2 Marks) iii) Calculate the sample standard deviation. (6 Marks) iv) What are the critical values using a significance level of 5%? (4 Marks) v) Calculate the test statistic. (5 Marks) vi) Based on your answers to parts (iv) and (v) above, provide a response to RWS whether the manufacturing process is operating correctly. (4 Marks)