COD The 2 Sample 2 Test Ar experiment was done to see whether Vitamin C prevents colos 100 people were randomly assigned to treatment (2.000 mg Vitamin C daily) and 100 to control (2.000 mg placebo daily) The treatment Sroup averaged 1.6 colds in a year with an SD of 2.1 and the control group averaged 2.2 colds with an SD of 24. The question is: Is this a real difference or is that just due to chance in other words, we chose a different random sample of treatment and control groups, how key would we be to still see such a difference? To make the significance test pretend you have 2 independent random samples and figure the se's . Which of the following most accurately describes the null boxes)? There is one null box with 200 tickets. The average of the tickets unknown but estimated from the sample a. Which of the following most accurately describes the null box(es)? There is one null box with 200 tickets. The average of the tickets is unknown but estimated from the sample There are 2 null boxes, each with 100 tickets. One box has an average of 1.8 and the other has an average of 2.2 There are 2 null boxes, each with millions of tickets. One box has an average of 1.8 and the other has an average of 2.2 There are 2 null boxes, each with millions of tickets. Both boxes have the same average. 1938* Tries 0/2 b. The draws are made replacement with without ** Tries 0/1 c. In the treatment group the SE of the average is 1 Tries 0/3 d.In the control group the SE of the average is HER Tries 0/3 e. The difference between the 2 averages is -0.4; the SE for this difference is (round to two decimals) 1. What is the value of the test statistic z? (Include negative sign, round to two decimals, and use previously rounded answer) * Tries 0/3 9. What is the value of the p-value? Click here to view the normal table 18 Tries 0/3 h. Which conclusion is best? O Cannot Reject the Null Hypothesis, we don't have strong enough evidence to conclude that Vitamin C helps, the difference could just be due to chance Reject the Null Hypothesis, we have enough evidence to conclude that taking Vitamin C is associated with having fewer colds in a year