Question: Need some help on these please INSTRUCTIONS B1. A notebook PC battery manufacturer measures the time taken to fully charge the ba mins. (a) The

Need some help on these please INSTRUCTIONS B1. A

Need some help on these please

INSTRUCTIONS B1. A notebook PC battery manufacturer measures the time taken to fully charge the ba mins. (a) The company wants to know the percentage of batteries with a charging time of between 65 and 68 mins. i. Illustrate this percentage by drawing a normal distribution graph and shading the appropriate area under the graph. Label the mean and the u values of the boundaries of the area clearly. [2 marks] ii. Using the appropriate z-table, calculate the actual percentage of batteries with a charging time of between 65 and 68 mins. [3 marks] Process Improvement (EPEF002) INSTRUCTIONS B1. A notebook PC battery manufacturer measures the time taken to fully charge the ba mins. (a) The company wants to know the percentage of batteries with a charging time of between 65 and 68 mins. i. Illustrate this percentage by drawing a normal distribution graph and shading the appropriate area under the graph. Label the mean and the u values of the boundaries of the area clearly. [2 marks] ii. Using the appropriate z-table, calculate the actual percentage of batteries with a charging time of between 65 and 68 mins. [3 marks] Process Improvement (EPEF002)

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