Please Help.

Nina is shopping for a new battery for her laptop computer. She wants the battery to X- H be good enough that it lasts when she leaves her home in the morning for school until when she arrives back home from school. She often uses her laptop when traveling to H = mean and from school. 0 = standard deviation Would you suggest that Nina purchase a Brand X or Brand Y battery? . Brand X has a battery life that is normally . Brand Y has a battery life that is normally distributed with a mean of 9.75 hours and a distributed with a mean of 9.5 hours and a standard deviation of 1.8 hours. standard deviation of 1.1 hours. Step 1: Label the mean standard deviation and corresponding number of hours for each normal distribution graph: (You must label each interval here to get credit for step 1) Brand X Brand YStep 2: Use Z-Scores to calculate the battery life percentage rate of occurrence for 8, 9 and 10 hours for each brand. (Z-Score Table is on pg. M5-41 and M5-42) Brand X (8 hours): Brand Y (8 hours): X- H X- H Z= Z= Z= What percentage of data lies below this z-score? What percentage of data lies below this z-score? Therefore, the battery life of 8 hours or more is Therefore, the battery life of 8 hours or more is likely to occur at what percentage rate? likely to occur at what percentage rate?Brand X (9 hours): Brand Y (9 hours): X- H X- H 7= - Z= Z = What percentage of data lies below this z-score? What percentage of data lies below this z-score? Therefore, the battery life of 8 hours or more is Therefore, the battery life of 8 hours or more is likely to occur at what percentage rate? likely to occur at what percentage rate? Brand X (10 hours): Brand Y (10 hours): X- H X - H Z= - Z = Z = What percentage of data lies below this z-score? What percentage of data lies below this z-score? Therefore, the battery life of 8 hours or more is Therefore, the battery life of 8 hours or more is likely to occur at what percentage rate? likely to occur at what percentage rate?Step 3: Answer the question, "Would you suggest that Nina purchase a Brand X or Brand Y battery? Give specific reasons making sure to reference the mean, and standard deviation and hours she could possibly need the battery to last. (Use complete sentences.)