Amount of salt
(6, 15)
the amount of salt, in grams, in a solution is
proportional to the volume, in liters, of the
solution as shown on the graph.
amount of salt (9)
what is the unit rate in grams per liter?
enter your answer, as a decimal, in the box.
0,0)
2
0
4
16
18 20
6 8 10 12 14
volume of solution (l)

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.21. what can you conclude? 2(0.21) = 0.42 < 0.5; the test is not statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 21% of the time, so the test is not statistically significant. 0.21 > 0.05; the test is statistically significant. if the null hypothesis is true, one could expect to get a test statistic at least as extreme as that observed 79% of the time, so the test is not statistically significant. p = 1 - 0.21 = 0.79 > 0.05; the test is statistically significant.