Question 4 The time taken by employees at Grace Floral shop to put a bouquet together has a normal distribution with mean 26.4 minutes and standard deviation .8 minutes. (ii) Find the probability that an employee chosen at random takes less than 26.3 minutes to put a bouquet together. [4] 20% of employees take more than t minutes to put a bouquet together. (ii) Find the value of t. [4]

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