B. Would the Floor Area be a significant predictor of Assessed Value?
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- Characteristics Treatment Control P-value Mean SBP 115.3889± 113.0588±6.805 Mean difference (SBP) -0.66±3.0292 2.117 ±2.471 0.005347 Mean DBP 74.556± 7.366 72.4705±6.374 Mean difference (DBP) -1.888±2.9483 1.411765 ±3.3343 0.002233 Mean Pulse rate 96.222±13.0 88.94±15.43725 Mean difference -9.444± 0.5294118± 0.3529523 write an analysis for the data above and what does the p value mean?Analysis of Variance Source DF SS MS F P Regression 1 3390.0 3390.0 19.4 0.000 Residual Error 174 30397.8 174.7 Total 175 33787.8 Use the information in the table to give the sample size and to calculate R^2.Enter the exact answer for the sample size, and round R^2 to one decimal place.Enter your answer; n Enter your answer; R^2 %Conduct a global test on the set of independent variables. Interpret Regression Statistics Multiple R 0.87027387 R Square 0.75737661 Adjusted R Square 0.75615535 Standard Error 14.6932431 Observations 600 ANOVA df SS MS F Significance F Regression 3 401662.063 133887.354 620.160683 8.708E-183 Residual 596 128671.271 215.891394 Total 599 530333.333 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept -3.9995369 3.05935528 -1.3073137 0.19161031 -10.007965 2.00889078 -10.007965 2.00889078 Annual Income 0.0002132 3.1402E-05 6.78944156 2.7269E-11 0.00015153 0.00027487 0.00015153 0.00027487 Married 45.7808695 1.20203164 38.0862434 8.444E-162 43.4201368 48.1416023 43.4201368 48.1416023 Male 21.9175699 1.20122625 18.2459964 2.0045E-59…
- Data: Rate difference per 1000 PY: ___-2.17__; 95% CI __-4.30___ to _-0.03____ HR: __79___; 95% CI _0.63____ to _0.99____ Which statement is the most correct interpretation of the risk of pooled stroke or systemic emboli in the propensity-matched analysis? Apixaban resulted in a statistically significant decrease in stroke or systemic emboli compared to rivaroxaban Apixaban resulted in a statistically significant increase in stroke or systemic emboli compared to rivaroxaban There was no statistically significant difference in stroke or systemic emboli between apixaban and rivaroxaban.Chest Injury Rating Car Driver Passenger Car Driver Passenger 1 42 35 10 36 37 2 42 35 11 36 37 3 34 45 12 43 58 4 34 45 13 40 42 5 45 45 14 43 58 6 40 42 15 37 41 7 42 46 16 37 41 8 43 58 17 44 57 9 45 43 18 42 42 Generate test results (α = .01) using data analysis (EXCEL).Analysis of Variance results: Where: Age > 5Responses: AgeFactors: Sex Response statistics by factor Sex n Mean Std. Dev. Std. Error female 121 10.490083 4.2222704 0.38384277 male 155 9.0806452 3.0091656 0.241702 ANOVA table Source DF SS MS F-Stat P-value Sex 1 134.98939 134.98939 10.466692 0.0014 Error 274 3533.79 12.897044 Total 275 3668.7794 Tukey HSD results (95% level) female subtracted from Difference Lower Upper P-value male -1.4094375 -2.2670907 -0.55178425 0.0014 In one complete sentence, interpret your confidence interval. Make sure in the interpretation it is clear the direction of the difference (i.e. which gender weighs more and by how much. Explain why a confidence interval provides more information to a tiger researcher than the results of a hypothesis test
- Title: Measures of variability: Grouped data activitySUMMARY OUTPUT Regression Statistics Multiple R 0.664798 R Square 0.441957 Adjusted R Square 0.376305 Standard Error 6.412199 Observations 20 ANOVA df SS MS F Significance F Regression 2 553.5729 276.7864 6.731793 0.007025498 Residual 17 698.9771 41.1163 Total 19 1252.55 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Intercept 26.6651 13.92768 1.91454 0.072535 -2.71974085 56.04995 X1 4.00929 1.1224 3.572068 0.002347 1.641232912 6.377348 X2 0.810165 0.477768 1.69573 0.108172 -0.19783686 1.818168 a. What can you say about the strength of this relationship for the model using the F test? Use α = .05. b. Is y significantly related to each independent variable? Use α = .05. c. Would your answer to b change if α = .001? If so, how? (3+4+3)Prenatal care Results of a 1996 American MedicalAssociation report about the infant mortality rate fortwins carried for the full term of a normal pregnancy areshown on the next page, broken down by the level ofprenatal care the mother had received.a) Is the overall rate the average of the other three rates?Should it be? Explain.b) Do these results indicate that adequate prenatal careis important for pregnant women? Explain.c) Do these results suggest that a woman pregnant withtwins should be wary of seeking too much medicalcare? Explain.
- A pharmaceutical company fills a drug which is in a powder form into a bottle. It has an automatedprocess consisting of a filling machine and a sealing unit. After filling the bottle, it is automaticallysealed with a metallic cap. To monitor the quality of the process, samples of size 5 are drawnperiodically from the process and the quantity filled is measured. The table below has data on 12such observations.Sample 1 2 3 4 51 9.21 8.87 8.71 9.08 9.342 9.06 8.97 9.13 8.46 8.853 9.35 8.95 9.20 9.03 8.444 9.21 8.71 9.05 9.35 8.875 9.01 9.17 9.21 9.05 9.536 8.74 8.35 8.50 9.06 8.897 9.21 9.05 9.00 8.78 9.238 9.15 9.20 9.23 9.15 9.069 8.98 8.81 8.90 9.13 9.0510 9.03 9.10 9.26 9.44 8.4811 9.49 9.05 9.12 8.88 8.9312 8.95 9.10 9.02 9.04 8.96(a) Establish the upper and lower control limits for the X bar chart and the R Chart(b) Construct a control chart and investigate if the process is in controlValues for setting the control charts are A2 = 0.577, D3 = 0, D4 = 2.114Critical Values: z0.005 = 2.575, z0.01 = 2.325, z0.025 = 1.96, z0.05 = 1.645, z0.1 = 1.282When d.f.=31: t0.005 = 2.744, t0.01 = 2.453, t0.025 = 2.040, t0.05 = 1.696 t0.1 = 1.309 In a random sample of 32 fossilized male femurs found at the Gronsalen Barrow, the meanweight was 10.2 oz and the standard deviation was 0.42 oz. Use a 0.01 significance level to test theclaim that the mean weight of the femurs of the males who lived there was 10.4 oz.Rates of return (annualized) in two investment portfolios are compared over the last 12 quarters. They are considered similar in safety, but portfolio B is advertised as being "less volatile." (a) At a= .025, does the sample show that portfolio A has significantly greater variance in rates than portfolio B? (b) At a=.25, is there a significant difference in the means? Reject the null hypothesis if the F calc >? Calculate the test statistic? Portfolio A: 5.11, 10.86, 12.44, 4.16, 5.59, 8.67, 7.70, 9.86, 9.64, 4.97, 11.60, 11.43 Portfolio B: 9.08, 8.70, 7.57, 6.19, 7.69, 7.03, 7.61, 7.76, 8.74, 8.89, 7.50, 9.88 1) Specify the decision rule. Reject the null hypothesis if Fcalc>____ 2) State the decision rule for .01 level if significance. Reject the null hypothesis if tcalc<____ or tcalc>____