A company that produces face masks at 10 different factories has noticed daily mean of 4 million with a standard deviation of 679,000 across all factories. Given the increase in demand a seven week (49 days) study was conducted. What is the standard error of the study? Answer What is the probability, as decimal, of having a sample mean greater than 4.15 million? Z Value of 4.15 million: Answer Probability of greater than 4.15 million: Answer What is the probability, as decimal, of having a sample mean between 3.87 million and 4.13 million? Z Value of 3.87 million: Answer Z Value of 4.13 million: Answer Probability of having a sample mean between 3.87 million and 4.13 million: Answer What is the probability, as decimal, if the 7-week study revealed a total production below 186.69 million? Daily Mean of the 7 week sample: Answer million Z Value of above value: Answer Probability of the above scenario: Answer