I keep getting answers that don't apply to my question right back. I need the tutors to actually look at this.

• Age at onset of dementia was determined in the general population to be m = 70 and s = 7.0.

Based on the data above, what is the z score for someone being diagnosed with dementia at age 65 (can round to two decimal places)? What percentage of people might start to show signs of dementia beforethis age ( DO NOT ROUND).

I just sent this question and it was answered with an age of 75. Please provide the answer for the age of 65.