I need help understanding/solving this question. I understand that lower quartile = 0.25 and upper quartile 0.75. A certain mental development index for infants is a standardized measure used in observing infants over time. It is approximately normal with a mean of 104 and astandard deviation of 17. Complete parts a through d.a. Find the z-score corresponding to the upper quartile (Q3) of a normal distribution.The z-score that corresponds to the upper quartile (Q3) of a normal distribution is(Round to two decimal places as needed.)b. Find and interpret the lower quartile and upper quartile of the mental development index.Interpret the lower quartile. Select the correct choice below and fill in the answer box to complete your choice.(Round to one decimal place as needed.)O A. Twenty-five percent of infants score higher thanB. Twenty-five percent of infants score lower thanC. The percentage of infants that score below 75 is%.D. The percentage of infants that score below 25 is%.Interpret the upper quartile. Select the correct choice below and fill in the answer box to complete your choice.(Round to one decimal place as needed.)A. The percentage of infants that score below 25 is%.B. The percentage of infants that score below 75 is%.

Name: I need help understanding/solving this question. I understand that low
Uploaded: 2024-03-20T07:06:16.000Z
Channel: Bartleby
Description: I need help understanding/solving this question. I understand that lower quartile = 0.25 and upper quartile 0.75. A certain mental development index for infants is a standardized measure used in observing infants over time. It is approximately normal