A radioactive material has a half life of 3 hours. If there are originally 10 miligrams of the radioactive material, how many mgs will be after 6 hours?

On a certain portion of an experiment, a statistical test result yielded a p-value of 0.18. what can you conclude? 2(0.18) = 0.36 < 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 18% of the time, so 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 82% of the time, so the test is not statistically significant. 0.18 > 0.05; the test is statistically significant. p = 1 - 0.18 = 0.82 > 0.05; the test is statistically significant.

Question 1(multiple choice worth 10 points)} stefan sees a commercial on television that makes him think he needs to buy an e-reader. this is an example of wasting time getting distracted allowing someone to set goals

Which of the following properties of a soil sample most influences the flow of water through the sample a. colorb. fertilityc. permeability d. phe. salinity