Ising the principle of least-squares Fit curve of the form y=acl+b*) to the given data be lowi- 15 Do
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- Consider two χ2-curves with degrees of freedom 12 and 20, respectively. Which one more closely resembles a normal curve? Explain your answer.a)Using BEST-FIT SECOND-DEGREE CURVE, what is A?b)Using BEST-FIT SECOND-DEGREE CURVE, what is B?c)Using BEST-FIT SECOND-DEGREE CURVE, what is C?Two t-curves have degrees of freedom 10 and 23 respectively. Which one more closesly resembles the standard normal curve? The one with _____ degrees of freedom.
- Which of the non-parametric test for ordinal data is the best to use in the given scenario? An experiment was conducted to compare the strengths of two types of elastic bandages: one a standard bandage of a specified weight and the other the same standard but treated with a chemical substance. Ten pieces of each were randomly selected from production. Does the treated bandage tend to be stronger than the standard? Table 1. Strength measurements (and their ranks) for 2 types of bandages. STANDARD TREATED 1.21(2) 1.49(15) 1.43(12) 1.37(7.5) 1.35(6) 1.67(20) 1.51(17) 1.50(16) 1.39(9) 1.31(5) 1.17(1) 1.29(3.5) 1.48(14) 1.52(18) 1.42(11) 1.37(7.5) 1.29(3.5) 1.44(13) 1.4(10) 1.53(19) a. Mood median test b. sign test c. Wilcoxon rank-sum test d. Wilcoxon matched-pairs signed-ranks test e. Spearman and Kendall correlation coefficients f. Kruskal-Wallis testThe estimated regression line is defined as the straight line that: touches the most points in the scatter diagram. minimizes the sum of the absolute deviations between the line and the corresponding observations. minimizes the sum of the squared vertical distances between each observation and the line. none of the aboveFind kurtosis by using ungroup data given in the picture using quartile deviation, make sure to arrange data before solving question.
- Which non-parametric test for ordinal data is the best to use in the given scenario? In a study by Zuckerman and Heneghan, hemodynamic stresses were measured on subjects undergoing laparoscopic cholecystectomy. An outcome variable of interest was the ventricular end-diastolic volume (LVEDV) measured in mm. A portion of the data appears in the following table. Baseline refers to a measurement taken 5 minutes after induction of anesthesia, and the term '5 minutes' refers to a measurement taken 5 minutes after baseline. Can we conclude that, on the basis of these data, among subjects undergoing laparoscopic cholecystectomy, the average LVEDV levels change? Let a =.01. LVEDV (ml) Subject Baseline 5 minutes 1 51.7 49.3 2 79.0 72.0 3 78.7 67.0 4 80.3 70.4 5 72.0 65.9 6 85.0 84.8 7 79.0 77.7 8 71.3 74.0 9 54.3 58.0 10 58.8 65.0 a. Mood Median Test b. Sign Test c. Wilcoxon Rank Sum Test d. Wilcoxon Matched-Pair Signed-Ranks Test e. Spearman and Kendall Correlation…Q1: Suppose data on root length (in mm) were obtained from roots from the three set-ups: (1) negative control; (2) positive control; (3) water sample of interest. Propose the inferential statistics used to analyze the data. Inferential StatisticsPlease also provide the drawing of curve/rejection region for each item as shown on the examples. Thanks.
- using that data above, please determine limit of correlation coefficient value prove the correlation value with the deviation data through the r formulation ( formula attached )Part D only please and solve without using excel only the Normal Curve table1.The equation of the least-squres regressioin line 2. which point is outlier 3. remove the outlier and compute the least-square regression line for redicting the president's age from the first lady's age 4. is the outlier influential