Time Left:1:15:12 Question 7 (1 point) Suppose there is a 60% chance that a white blood cell will be a neutrophil. If a group of researchers randomly selected 15 white blood cells for their pioneer study, what is the expected value and standard error of the sum of white blood cells that are classified to be neutrophil? O A) EV = 60; SE = 4.9011 O B) EV = 15; SE = 3.615 O C) EV = 6; SE = 1.6001 D) EV = 0.6; SE = 0.1397 OE) EV = 9; SE = 1.8974 Previous Page Next Page Page 7 of 11Question 8 (1 point) Suppose you are in the midst of formulating a new drug to treat insomnia more effectively than traditional methods and with people experiencing fewer side effects. Assume that the box model for the number of days adult patients have insomnia (per week) can be modeled as [1 1 1 2 2 3 4 5 6 7], with mean of 3.2 days and standard deviation of 2.09 days. [Source: Harvard Health Publishing (2009, February). Insomnia: Restoring restful sleep. Retrieved from https://www.health.harvard.edu/staying-healthy/insomnia-restoring-restful-sleep] Assuming a normal distribution, what is the probability of the sum being more than 365 days in a random sample of 100 adult patients with insomnia? A) 0.0158 B) 0.1401 O C) 0.8599 OD) 2.1531 E) 0.9842