Use the Central Limit Theorem to find the probability of the indicated event, assuming that the distribution of the population data is unknown. The amount of time students spend checking their phones during a lecture period has a mean of 9 minutes and standard deviation of 2 minutes. What is the probability that a sample of 35 students will spend an average of at most 9.5 minutes checking their phones during a lecture period? Standard Normal Distribution Table Provide a solution showing your calculations and submit your work for marking. Include a sketch as part of your complete solution. P(X < 9.5) =