A team of researchers suspect that there is a difference between the before and after scores; such that, the after scores will be significantly lower compared to the before scores. They run a SPSS analysis to test for a significant difference between the two groups. Enter this data into SPSS and conduct the appropriate test for this analysis. Before scores (14, 17, 11, 13, 17, 18, 11, 12). After scores (2, 4, 6, 8, 10, 12, 12, 16). Intrepret the output tables and select the correct statistical statement based on the results of the analysis: Select one:
a. t(7) = 2.72, p = .029
b. t(7) = 2.72, p = .057
c. t(7) = 2.97, p = .021
d. t(7) = 2.97, p = .011
e. t(7) = 2.63, p = .034
f. t(7) = 2.63, p = .017

Which equation represents the partial sum of the geometric series?

()1. how do you find range? 2.the following set of data is to be organized into a histogram. if there are to be five intervals on the graph, what should the length of each interval be? 30, 34, 23, 21, 27, 25, 29, 29, 25, 23, 32, 31

The rate of decay of a radioactive substance depends upon the amount present initially. the mass y (mg) of the radioactive substance cobalt-60 present in a sample at time t (years) is represented by the exponential equation y=50e −0.1315 t . answer the following questions in complete sentences. 1. how does the exponential equation above compare to the equation for simple interest that is compounded continuously? explain the similarities. 2. what is the initial amount of cobalt-60 in the sample? 2. how much cobalt-60 is left after 8.4 years? show your work. 3. what would be the y-intercept of the graph? what does it represent? 4. after how many years will the amount of cobalt-60 left be 6.25 mg? explain what happens to the cobalt-60 after 50 years? 5. discuss some “real-world” examples and uses of cobalt-60