How do you interpret the coefficients for the incomegrouplow and incomegroupmiddle in the photo? (please provide explanation)
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How do you interpret the coefficients for the incomegrouplow and incomegroupmiddle in the photo? (please provide explanation)
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- Min 1Q Median 3Q Max -18.7823 -0.4865 0.8395 3.0765 7.1123 Coefficients: Estimate Std. Error t value (Intercept) -6.4793 5.5481 -1.168 LAT 0.7515 0.1438 5.228 Pr(>|t|) (Intercept) 0.249 LAT 4.79e-06 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 5.498 on 43 degrees of freedom Multiple R-squared: 0.3886, Adjusted R-squared: 0.3744 F-statistic: 27.33 on 1 and 43 DF, p-value: 4.786e-06 What proportion of the variability in the dependent variable RANGE is accounted for by LAT through the regression line? Write the estimated regression function.only define the parameter and write the null and alternative hypotheses The production line for Glow toothpaste is designed to fill tubes with a mean weight of 6 oz.Periodically, a sample of 35 tubes will be selected in order to check the filling process. Qualityassurance procedures call for the continuation of the filling weight for the population of toothpastetubes is 6 ounces; otherwise the processes will be adjusted. Suppose a sample of 35 toothpaste tubesprovides a sample mean of 6.1 oz and standard deviation of 0.2 oz. State the parameter and both hypotheses to help determine whether the filling process should continue operating or be stopped and corrected.Obtain the studentized deleted residuals. Which case has the largest absolute value studentized deleted residual? preferrably using R.
- a) Analytically b) Single application of trapezoidal rule c) Determine the percent relative error based on (a)In construction of scatter plot _____ are used for th x axix regression coefficient Independent variable random variable dependent variableIt is known that the tensile strength of a plastic increases as a function of the time it is subjected to heat treatment. The table below shows the data of the plastic subjected to heat treatment. Determine these data by using the "lagrange interpolation" method by approximating the functions of the lagrange multipliers of L0 , L1 , L2 , L3 and L4 to a 4th order curve. Calculate the tensile strengths of 1.7321 and 2.2361 seconds for each lagrange factor in the function equations of the lagrange multipliers.
- 1.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 influentialTo study the effect of alloying on the resistance of electric wires, an engineer plans to measure the resis-tance of n1 = 35 standard wires and n2 = 45 alloyed wires. If it can be assumed that σ1 = 0.004 ohm andσ2 = 0.005 ohm for such data, what can she assert with98% confidence about the maximum error if she usesx1 − x2 as an estimate of μ1 − μ2? (Hint: Use the result ofExercise 8.)An industrial product is packaged in batches of units each. The number ofdefective units within each batch is unknown. Since checking whether aunit is defective or not is expensive, the quality control consists in selectingunits of the batch and obtaining an estimation of the number of defectiveunits within the batch. The batch is rejected if the estimated number ofdefective units exceeds . a. Find the moment estimator of the number of defective units within aparcel.b. If N=20, n=5, and among these units 2 of them are defective, is thebatch rejected?
- Samples are collected from the River X and pH values are observed. 9 different pH values arelisted in table 3.Table 3Concentrations 4.2 3.8 6.0 3.5 8.1 4.9 4.1 3.2 4.0Draw box plot and finda. Bowley’s coefficient of skewnessb. Karl Pearson’s coefficient of skewnessc. Third momentRubricStages of Process MarksImagine and Plan 2Composition 2Effort 1Find kurtosis using quartile deviation.Assume that last year in a particular state with 700000 children there were 1552 children out of 31500 in a random sample who were diagnosed with Autism Spectrum Disorder. Nationally, 1 out of 88 children are diagnosed with ASD. Is there sufficient data to show that the incident rate of ASD is higher in that state than nationally? Test at the 7% level.P: PARAMETER What is the correct parameter symbol for this problem? What is the wording of the parameter in the context of this problem? H: HYPOTHESES Fill in the correct null and alternative hypotheses: The value of p on this one is a fraction....leave it exact. H0:H0: HA:HA: A: ASSUMPTIONS Since information was collected from each object, what conditions do we need to check? Check all that apply. n(1−pˆ)≥10n(1-p̂)≥10 σσ is unknown. N≥20nN≥20n np≥10np≥10 σσ is known. n(1−p)≥10n(1-p)≥10 n≥30n≥30 or normal population.…