What is the relationship between diamond price and carat size? 307 diamonds were sampled and a straight-line relationship was hypothesized between y = diamond price (in dollars) and x = size of the diamond (in carats). The simple linear regression for the analysis is shown below:
Least Squares Linear Regression of PRICE
Predictor
Variables Coefficient Std Error T P
Constant -2298.36 158.531 -14.50 0.0000
Size 11598.9 230.111 50.41 0.0000
R-Squared 0.8925 Resid. Mean Square (MSE) 1248950
Adjusted R-Squared 0.8922 Standard Deviation 1117.56
Which of the following conclusions is correct when testing to determine if the size of the diamond is a useful positive linear predictor of the price of a diamond?
◦ The sample size is too small to make any conclusions regarding the regression line.
◦ There is insufficient evidence to indicate that the price of the diamond is a useful positive linear predictor of the size of a diamond when testing at α = 0.05.
◦ There is insufficient evidence to indicate that the size of the diamond is a useful positive linear predictor of the price of a diamond when testing at α = 0.05.
◦ There is sufficient evidence to indicate that the size of the diamond is a useful positive linear predictor of the price of a diamond when testing at α = 0.05.
From left to right: Size development, biometrical changes in the cranium, reduction of toes ...
Tubal ligation. To minimize the size of the incisions necessary, laparoscopic surgery may be used to
Relationship between psychosocial adaptation
Australopithecus sediba shares small brain size with other members of Australopithecus but also has
The relationship between the number of stem cell divisions in the lifetime of a given tissue and the