Question 907859: I need help with this question please
The Academy Awards for the Best Actress and Best Actor have been given every year since 1928. The ages of recent winners are listed below:
Ages of Best Actresses
22, 37, 28, 63, 32, 26, 31, 27, 27, 28, 30, 26, 29, 24, 38, 25, 29, 41, 30, 35, 35, 33, 29, 38, 54, 24, 25, 46, 41, 28, 40, 39, 29, 27, 31, 38, 29, 25, 35, 60, 43, 35, 34, 34, 27, 27, 42, 41, 36, 32, 41, 33, 31, 74, 33, 50, 38, 61, 21, 41, 26, 80, 42, 29, 33, 35, 45, 49, 39, 34, 26, 25, 33, 35, 35, 28, 30, 29, 61
Ages Best Actors
44, 41, 62, 52, 41, 34, 34, 52, 41, 37, 38, 34, 32, 40, 43, 56, 41, 39, 49, 57, 41, 38, 42, 52, 51, 35, 30, 39, 41, 44, 49, 35, 47, 31, 47, 37, 57, 42, 45, 42, 44, 62, 43, 42, 48, 49, 56, 38, 60, 30, 40, 42, 36, 76, 39, 53, 45, 36, 62, 43, 51, 32, 42, 54, 52, 37, 38, 32, 45, 60, 46, 40, 36, 47, 29, 43, 37, 38, 45
Questions to be answered:
1. Are there key differences between the ages of the Best Actresses and the ages of the Best Actors?
2. Does it appear that actresses and actors are judged strictly on the basis of their artistic abilities?
3. Does there appear to be discrimination on age, with the Best Actresses tending to be younger than the Best Actors?
4. Are there any other notable differences?
The above four questions must be answered using descriptive statistics.
I have worked out the following:
Actresses: Mean = 35.72; Median = 33; Mode = 29, 35; Standard Deviation = 11.31.
Actors: Mean = 43.8; Median = 42; Mode = 41, 42; Standard Deviation = 8.95.
Any other suggestions please.
Answer by ewatrrr(24785)   (Show Source):
You can put this solution on YOUR website! the work done has shown a significant and noticeable differences in mean ages.
(didn't happen by accident so to speak) P(t≥15.955) is basically zero.
t-test
t =  = 15.955
|
|
|
