A researcher selects a sample of 30 participants, randomly assigned to one of two groups. She conducts an independent groups t-test at a .05 level of significance. What is the smallest value that the test statistic could be for this test to result in a decision to reject the null hypothesis using a two-tailed test?
A. 2.052
B. 2.042
C. 2.045
D. 2.048

Factor the expression using the gcf. the expression 21m−49n factored using the gcf

A. plot the data for the functions f(x) and g(x) on a grid and connect the points. x -2 -1 0 1 2 f(x) 1/9 1/3 1 3 9 x -2 -1 0 1 2 g(x) -4 -2 0 2 4 b. which function could be described as exponential and which as linear? explain. c. if the functions continue with the same pattern, will the function values ever be equal? if so, give estimates for the value of x that will make the function values equals. if not, explain why the function values will never be equal.

Rose bought a new hat when she was on vacation. the following formula describes the percent sales tax rose paid b=t-c/c