A sample of 10 adult men gave the following data on their ...
Worksheet 2
A sample of 10 adult men gave the following data on their heights and weights.
|Height (inches) (x) |62 |62 |
|n = 5 |n= 5 |n=4 |
|x̄ = 82.2 |x̄ = 80.4 |x̄ = 82.8 |
|s = 12.6 |s = 17.3 |s = 11.3 |
National League
|East Division |Central Division |West Division |
|n = 5 |n= 6 |n= 5 |
|x̄ = 85.0 |x̄ = 81.5 |x̄ = 74.4 |
|s = 3.8 |s = 11.7 |s = 5.7 |
g. Overall, who had the greatest wining average, the East teams, the Central teams, or the West teams?
h. Overall, where were the teams the least “consistent” in number of games won, East, Central, or West?
i. Find (to the nearest tenth) the average number of games won for all West Division teams.
|X |1 |4 |6 |7 |
|Y |9 |7 |8 |1 |
j. Find the equation for the least squares regression line.
k. Use your equation from j to predict y when x = 3.
l. Find the sample correlation coefficient for the given data.
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