AID17542: Raj studios a Tollywood casting company, is selecting a group of extras for a
movie. The ages of the first 30 men to be interviewed are.
|
50 |
56 |
55 |
|
54 |
55 |
61 |
|
49 |
52 |
57 |
|
60 |
51 |
59 |
|
56 |
57 |
56 |
|
62 |
52 |
54 |
|
55 |
49 |
52 |
|
61 |
60 |
51 |
|
57 |
56 |
59 |
|
52 |
54 |
49 |
The
director of the movie wants men whose ages are grouped around 50 years. The
director suggests that a standard deviation of 3 years would be acceptable.
Does this group of extras qualify to the director’s requirement?