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- Roman, a health data officer, was tasked to create a report describing the height of all the children ages 12-15 years in a small town in Rome. He measured the height of all the 37 children (ages 12-15 years) in that small town. Answer the table showing the number and percentage of children ages 12 to 15 years according to sex. Sex f Rel f Male <2 decimal places> Female <2 decimal places> Σf <2 decimal places>The Iris Flower Data Set at https://en.wikipedia.org/wiki/Iris flower data set e consists of measurements taken from Iris flowers: the petal length and width and the sepal length and width were measured in centimeters (cm) and recorded for a lot of flowers. We are interested in being able to use the petal width to predict the petal length. Use the Excel output provided below to answer the Iris Flower questions that follow. SUMMARY OUTPUT Data from: https://en.wikipedia.org/wiki/Iris flower data set Using Petal Width to predict Petal Length. Regression Statistics Multiple R 0.962746025 R Square 0.926879908 Adjusted R Square 0.926385853 Standard Error 0.47895943 Observations 150 ANOVA df MS Significance F Regression 1 430.373884 430.373884 1876.067473 5.90274E-86 Residual 148 33.951516 0.229402135 Total 149 464.3254 Coefficients Standard Error t Stat P-value Lower 95% Upper 95% Lower 95.0% Upper 95.0% Intercept 1.079463302 0.073168311 14.75315321 7.2245E-31 0.934873757 1.224052847…To estimate ages of trees, forest rangers use a linear model that relates tree diameter to age. The model is useful because tree diameter is much easier to measure than tree age (which requires special tools for extracting a representative cross section of the tree and counting the rings). Use the data in the table below collected for a certain variety of oaks to answer the following questions. Diameter (in.) Age (years) 2.5 15 4.0 24 6.0 32 8.0 56 9.0 49 9.5 76 12.5 90 15.5 89 (a) State, with a reason, which variable is the response variable. (b) Obtain the scatter plot for the data and comment on the relationship between the variables. (c) Determine the Pearson correlation coefficient and comment on the result obtained. (d) Obtain the graph and the equation of the regression line for the data. (e) State the slope and give an interpretation of the slope of this regression line. (f) Use the equation to estimate the age of an oak whose diameter is 18 in. (g) Determine the coefficient of…
- The following table summarizes the percentage frequency of admitted students in SQU (2018) Defect code Percentage Frequency Bachelor 0.733 Master 0.206 Postgraduate Diploma 0.044 PhDRefer to the accompanying data display that results from a sample of airport data speeds in mbps . Complete parts (a) through (c). TInterval (13.046,22.15) x=17.598 Sx=16.01712719 n=50