Microsoft has a new online tool that tries to guess the age…

Microsoft has a new online tool that tries to guess the age of the individual in the image. Individuals uploaded a photo of themselves and had the program determine their age (ToolAge).  The individuals also entered their real age (True Age). A regression model was made to predict true age based on the tool age. If only the data for the women was included, the least squares regression equation was  yhat = 16.29+0.44x Interpret the slope(if applicable).

Microsoft has a new online tool that tries to guess the age…

Microsoft has a new online tool that tries to guess the age of the individual in the image. Individuals uploaded a photo of themselves and had the program determine their age (ToolAge).  The individuals also entered their real age (True Age). A regression model was made to predict true age based on the tool age. The least squares regression equation was  yhat = 13.28 +0.50x Interpret the slope (if applicable).

Tests for allergies can be done in multiple ways. One way is…

Tests for allergies can be done in multiple ways. One way is through a blood test. ImmunoCAP is one of such tests. About 0.5% of adults have tree nut allergies at some level of severity. The test correctly identifies 94% of the time adults with a tree nut allergy and correctly identifies those without tree nut allergies 93% of the time.  What is the probability of an adult not having a tree nut allergy and the test being negative?

In the summer of 2011, the Chicago libraries recorded the nu…

In the summer of 2011, the Chicago libraries recorded the number of participants per branch of the library versus the number of books read from that branch.  They wanted to predict the number of books read at each branch based on the number of participants in the summer program.  The least squares regression equation was  books read = -657.0 +24.74 participants For one branch of the library the number of participants was 1053. The number of books read was 25803.  Find the residual.