Yamasa Soy Sauce Data Fall 2002 



Store 
Vol/ml 
Price 
Ace Commercial 
500 
1.6 
Bamboo Inn 
500 
1.85 
Josaiah 
500 
1.9 
Panuelo 
500 
1.95 
En's 7 Star 
500 
2.1 
Ace Commercial 
1000 
3.95 
4TY 
1000 
4.25 
Panuelo 
1000 
4.75 
En's 7 Star 
1000 
4.95 
Ace Commercial 
1800 
4.95 
Panuelo 
1800 
5.15 
Wall Mart 
1800 
5.4 
4TY 
1800 
5.95 
En's 7 Star 
1800 
6.25 

14 
14 
What is the sample size n? 

1107.14 
3.93 
What is the mean price? 

574.41 
1.69 
What is the sample standard deviation of the price? 

0.52 
0.43 
What is the sample coefficient of variation for the price? 

0.002697 

Calculate the slope of the best fit (also known at least squares) line for the data. 

0.94 

Calculate the yintercept of the best fit line. 

positive 

Is the correlation positive, negative, or neutral? 

$4.99 

What is the predicted price of a 1500 ml bottle of Yamasa soy sauce? 

762.81 

What is the predicted volume of a $3.00 bottle of Yamasa soy sauce? 

0.9168 

Calculate the linear correlation coefficient r for the data. 

high 

Is the correlation none, low, moderate, high, or perfect? 

0.8405 

Calculate the coefficient of determination. 

84.05% 

What percent of the variation in volume explains the variation in price? 