The cholesterol level of a random sample of patients who had heart attacks was measured two days after the heart attack and then again four days after the heart attack. The researchers want to see if the cholesterol level of patients who have heart attacks reduces as the time since their heart attack increases. The data is given in the table below. Do the data show that the mean cholesterol level of patients that have had a heart attack reduces as the time increases since their heart attack? a) Test at the 3% level. b) Compute a 94% confidence interval for the difference. Cholesterol levels of patients 2 days after (L1) Cholesterol levels of patients 4 days after (L2) 270 21 8 280 21 8 1 60 146 236 234 280 200 241 288 206 244 224 200 1 86 2 4 142 278 288 294 282 244 310 2 6 318 288 276 266 220 210 Part a.) HYPOTHESIS TEST P: Parameter What is the correct parameter symbol and wording for population 1? Select an answer v = S Select an answer N1 '6 parameter symbol and wording for population 2? [m |= Part a.) HYPOTHESIS TEST P: Parameter What is the correct parameter symbol and wording for population 1? Select an answer v = Select an answer V Select an answer The cholesterol level of a randomly selected heart attack patient 2 days after the attack 24 randomly selected heart attack patients 2 days after the attack The mean cholesterol level of all heart attack patients 2 days after the attack [A randomly selected heart attack patient 2 days after the attack I The mean cholesterol level of 24 randomly selected heart attack patients 2 days after the attack What is the correct parameter symbol and wording for population 2? Select an answer V = e Select an answer P2 p2 X2 N2 puted as L3 = L1 - L2, pick the correct set of hypoth 2 d n2 inswer V ? v mg/dL udWhat is the correct parameter symbol and wording for population 2? Select an answer v = Select an answer V Select an answer The mean cholesterol level of 24 randomly selected heart attack patients 4 days after the attack The mean cholesterol level of all heart attack patients 4 days after the attack A randomly selected heart attack patient 4 days after the attack The cholesterol level of a randomly selected heart attack patient 4 days after the attack 24 randomly selected heart attack patients 4 days after the attack Ll . I Gala\"; r... nun\"... . . | | f) . Tl'llm >l H: Hypotheses Assuming L3 is computed as L3 = L1 - L2, pick the correct set of hypotheses for this problem.: Ho : Select an answer V ? v mg/ dL Select an answer n1 - n2 HA : p1 - P2 ? v mg/dL P1 - p2 d X1 - X2 A: Assumptud M1 - M2 Since S N1 - N2 formation was collected from each object, we need to check the foH: Hypotheses Assuming L3 is computed as L3 = L1 - L2, pick the correct set of hypotheses for this problem. : Ho : Select an answer v ? v mg/dL HA : Select an answer v mg/dL HIAIIVIVA A: AssumptionsH: Hypotheses Assuming L3 is computed as L3 = L1 - L2, pick the correct set of hypotheses for this problem.: Ho : Select an answer ? v mg/dL HA : Select an answer v ? v mg/dL Select an answer X1 - X2 N1 - N2 A: Assumptipi - P2 M1 - 2 Since Sen1 - n2 formation was collected from each object, we need to check the fo conditions: p1 - p2 ud Check al dH: Hypotheses Assuming L3 is computed as L3 = L1 L2, pick the correct set of hypotheses for this problem: He _-Smgm IlaChm A: Assumptions Since inf s Ition was collected from each object, we need to check the f0 conditions: > IA IV A ll A: Assumptions Since information was collected from each object, we need to check the following condition qualitative Check quantitative Owl > 10 and $2 2 10 071173212 10andn27$22 10 Cl N1 2 20714 and N2 2 20n2 D The samples are independent D The samples are dependent [3 Normal population of differences or at least 30 pairs of data Cl Normal populations or n1 2 30 and n2 2 30 D No outliers in the differences [3 No outliers for each group Cl (7 is unknown for each group D 0' is known for each group Check those assumptions: 1. There Select an answer two measurements taken on the same object, so these samples are Select an ans Select an answer were not 2. Is the \\ were for each group? |? V2. Is the value of 0 unknown for each group? 9 3. Are there an)! outliers in the differences? Yes _ Select an answer No 3. Are there any outliers in the differences? Select an answer V Select an answer No, the modified boxplot of the differences shows no outliers Yes, the modified boxplot of at least one of the data sets shows outliers Yes, the normal probability plot shows outliers No, the modified boxplot of each data set shows no outliers e No, the normal probability plot shows no outliers Yes, the modified boxplot of the differences shows outliers No, the histogram shows no outliers Yes, the histogram shows outliers\fIs it reasonable to assume the population is normally distributed? Select an answer v Select an answer Not necessary to check since the sample size is at least 30. If Not necessary to check since the sample size is less than 30. Yes since the normal probability plot of the differences is roughly linear with no outliers. 'e Yes since the normal probability plot of the differences is roughly bell-shaped with no outliers. No, since the normal probability plot of the differences is not roughly linear. 't No, since the normal probability plot of the differences is not roughly bell-shaped. Yes, since the normal probability plot of each list of data is roughly linear with no outliers. '6 No, since the normal probability plot of each list of data is not roughly linear with no outliers. I'I I'l I.' In N: Name the test The conditions are met to use a Select an answer V Select an answer T: Test Statistic T-Test Paired T-Test The symbol and value of the ran 2-Sample T-Test DI 2-Proportion Z-Test This computation assumes you ca 1-Proportion Z-TestT: Test Statistic The symbol and value of the random variable on this problem are as follows: This computation assumes you calculated L3 as L3= L1 - L2. Round your answers to 2 decimal places. Select an answer V mg/dL Select an answer d M1 - H2 n1 - n2 Fil p1 - p2 thnology to 2 decimal places: P1 - P2 N1 - N2 X1 - X2Final answer from technology to 2 decimal places: 0: Obtain the P-value Report the final answer to 4 decimal places. It is possible when rounded that a p-value is 0.0000 M: Make a decision Since the p-value V , we Select an answer V S: State a conclusion 2 =