Question

Question 5 and 6

2 = 34.7, df = 21 0.75 <P<0.90 0.025 <P<0.05 0.90 < P<0.95 О 0.05<P<0.10 UESTIONS Given the test statistic and degrees of freedom, find the p-value range (area to the right) that is the best choice. X2=2.76, df = 6 O 0.025 <P<0.05 0.05<P<0.10 0.90 <P<0.95 0.75 <P<0.90 QUESTION 6 When making inferences concerning the mean difference using two dependent samples, it is necessary to calculate the standard deviation of the sample differences Calculate the standard deviation of the sample differences using the following information Round to 2 decimal places College Placement Test Results Applicant Before 12 Afer 1 4 5 64 74 75 74

Answer 1

Question 5

P value for $\chi^2$ = 2.76 with degree of freedom = 16 is 0.8383

0.75 < P vaue < 0.90

Question 6

Test Statistic :-

d̅ = Σdi/n = -60 / 5 = -12

S(d) = √(Σ (di - d̅)² / n-1)
S(d) = √( 158 / 4) = 6.2849