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

Use the graph of the sine function y=2sinθ shown below

Determine if the following statement is true or false. the normal curve is symmetric about its​ mean, mu. choose the best answer below. a. the statement is false. the normal curve is not symmetric about its​ mean, because the mean is the balancing point of the graph of the distribution. the median is the point where​ 50% of the area under the distribution is to the left and​ 50% to the right.​ therefore, the normal curve could only be symmetric about its​ median, not about its mean. b. the statement is true. the normal curve is a symmetric distribution with one​ peak, which means the​ mean, median, and mode are all equal.​ therefore, the normal curve is symmetric about the​ mean, mu. c. the statement is false. the mean is the balancing point for the graph of a​ distribution, and​ therefore, it is impossible for any distribution to be symmetric about the mean. d. the statement is true. the mean is the balancing point for the graph of a​ distribution, and​ therefore, all distributions are symmetric about the mean.

Charlie is at an amusement park that has 18 different rides. each ride costs $1.75. the function c(r) = 1.75r represents the total amount of money that charlie will spend if he goes on r rides, but he never goes on the same one more than once. what domain and range are reasonable for the function?