The director of manufacturing at a textile mill needs to determine whether a new machine is producing a particular type of cloth according to the manufacturer’s specifications, which indicate that the cloth should have a mean breaking strength of 40 kgs. The standard deviation is known to be 4 kgs. A sample of 49 pieces of cloth reveals a mean breaking strength of 39.1 kgs. 1 The population parameter of interest is 2 The null hypothesis is 3 The alternative hypothesis is 4 The level of significance is 5 H0 will be rejected if 6 The test statistic is 7 The p-value is 8 The decision is 9 Based on the sample, there is Is there evidence that the mean breaking strength is less than 40 kgs? Use a 1% test.