In an art class, students were tested at the end of the course on a final exam. Then they were retested with an equivalent test at subsequent time intervals. Their scores after time t, in months, are given in the table.

Time, t(in months)

Score, y

1

84.9%

2

84.6%

3

84.4%

4

84.2%

5

84.1%

6

83.9%

a) Draw a scatter plot of the data.

b) Fit linear, quadratic, logarithmic, and power functions to the data. By comparing the values of, determine the function that best fits the data.

c) Superimpose the regression curve on the scatter plot.a) Use the regression model to predict test scores after 8, 10, 24, and 36 months.

b) After how long will the test scores fall below 82%?</pclass="msonormal">

"Get 15% discount on your first 3 orders with us"
Use the following coupon
"FIRST15"

Order Now