Question

MTH 245 Statistics 1 Section DL05 Summer 2020 Samreen Qureshi & Homework: Section 8.3 Homework Save Score: 0 of 1 pt 6 of 6 (5 complete) HW Score: 41.39%, 3.31 of 8 pts 8.3.23 Assigned Media Question Help Construct a 90% confidence interval, using the inequality d -to To H <d+te Ta To test the effectiveness of a new drug that is reported to increase the number of hours of sloop patients get during the night, researchers randomly select 13 patients and record the number of hours of sloep each gets with and without the new drug. Patient 2 3 5 6 7 8 9 10 11 12 13 Sleep without the drug 4.1 2.5 43 45 44 44 26 23 26 4.5 4.6 2.3 5.1 Sleep using the drug 5.8 5.0 5.2 6.9 6.1 6.3 4.3 3.9 4.1 6.1 5.2 44 7.3 Calculated for each patient by subtracting the number of hours of sleep with the drug from the number without the drug. The confidence interval is << (Type an integer or a decimal. Round to two decimal places as needed.) 1 4 Enter your answer in the edit fields and then click Check Answer All parts showing Clear All Check Answer - Previous Next

Answer 1

S.NO without (A) with (B) d = A-B (d-d BAR (d-d BAR)^2 0.02 0.00053 1 4.1 00 -1.70 2 2.5 5 -2.50 -0.78 0.60361 3 5.2 -0.90 0.82 4.3 4.5 4 6.9 -2.40 -0.68 5 6.1 -1.70 0.02 4.4 4.4 0.67746 0.45822 0.00053 0.03130 0.00053 0.01515 6 6.3 -1.90 -0.18 7 2.6 4.3 -1.70 0.02 8 2.3 3.9 0.12 2.6 4.1 0.22 0.04976 9 10 4.5 6.1 11 12 13 4.6 2.3 5.1 SUM MEAN 5.2 4.4 7.3 -1.60 -1.50 -1.60 -0.60 -2.10 -2.20 -22.40 -1.72 0.12 1.12 -0.38 -0.48 0.01515 1.26130 0.14207 0.22746 3.48

n-13 a = -1.72 Ta 3.48 0.53852 13-1 df = n-1 13-1 = 12; 90. CI wa 1-0.9 -0.) tzt 42, df = to 05:12 11 1.782 (from it table) 90%C] åtte Son -1.72 t 1.782 x 0.53852 Vr3 -1.72 1 0.27 -1.99 -1.45 90% of a -1.99 <Md <-1.45