Dementia is the loss of the intellectual and social abilities severeenough to interfere with judgeme

Dementia is the loss of the intellectual and social abilities severeenough to interfere with judgement, behavior, and daily functioning. Alzheimer’s disease is themost common type of dementia. A sample of 21 people with early-onset dementia gave thefollowing data on age at diagnosis.60 58 52 58 59 58 51 61 54 59 5553 44 46 47 42 56 57 49 41 43At 1% significance level, do the data provide sufficient evidence to conclude that the mean ageat diagnosis of all people with early-onset dementia is less than 55 years old? Assume that thepopulation standard deviation is 6.8 years (Use MINITAB to solve this problem).