HW 11.3, 11.4 Score: 0/27 0/13 answered . Question 5 Suppose the shaded area (which is 0.86) is to the left of the STS of a x2 test. Remember, P-value is the area associated with the STS. Since you are given area, you do not need a calculator or degrees of freedom. Find the P-value for a: a. Left-tailed test: b. Right-tailed test: c. Two-tailed test:Question 6 Find the P-value (to 4 decimals) for a x test with d. f. = 14 and STS x2 = 18.4 if the test is: a. Left tailed: b. Right tailed: c. Two-tailed:0 Question 7 v AffectedNType ' Fir Cedar Total Yes 75 72 216 No 169 106 415 Total 209 244 178 631 The table shows a recent random sampLe of different tree species and whether or not they have been affected by a drought. At a 5% Level of Significance, test to see if whether a tree is affected by the drought is dependent on species. 1. The hypotheses are : '31:? Ho:Trees species and drought effect are independent Ha:Trees species and drought effect are dependent '31:? Ho:Trees species and drought effect are dependent Ha:Trees species and drought effect are independent 2. This is a '33:? right'33:33' LeftC two tailed test: d.f. = 3a. The STS [to 2 decimals] is x2 = 3b. The P-value {to 3 decimals} = 4a. The decision at a = 5% is '17 Reject Ho '3' Do not reject Ho 413+ The conclusion is '3' There is insufficient evidence to concLude that tree species and drought effect are dependent '33:? There is insufficient evidence to concLude that tree species and drought effect are independent '13:? There is sufficient evidence to concLude that tree species and drought effect are independent '33:} There is sufficient evidence to concLude that tree species and drought effect are dependent