” MATH2392编程 辅导、data留学生程序 写作MATH2392 Practice of AnalyticsAssignment 3Due date: Sunday, 4 October, 20201. The file juul2.txt (located on Canvas – Assignment 3) contains data fromAnders Juul on insulin-like growth factors: Age age in years Height height in cm Menarche did the menarche occur? (1/2 = no/yes) Sex 1 = Male, 2 = Female IGF1 Serum IGF-I Tanner Tanners puberty classification (1-5) Testvol testis volume Weight weight in kgNumbers are separated by blanks and missing values are coded by a dot.a. Find the correlation coefficient between Weight and each of thefollowing variables: Sex, Age, Height, IGF1, Tanner.b. Restrict the data to the variables IGF1, Age, Sex, Tanner, Weight andHeight to the subjects that are younger than or exactly 20 years old.Remove all subjects that have a missing value in any of the variables.c. Consider body weight as response variable and perform a multipleregression analysis using the following variables as predictors: Sex,Age, Height, IGF1, Tanner. Extract the regression coefficientswith standard error, 95% confidence intervals, and p-values. (Hint: useOUTEST = option in PROC REG statement with TABLEOUTrequirement).d. Consider body weight as response variable and do a linear regressionmodel with age and gender as predictors.e. Consider body weight as response variable and do a linear regressionmodel with age and gender and an interaction term for age and genderas predictors. (Hint: Use PROC GLM procedure).Copy and Paste the program on your answer sheet for each part.Submit the answer sheet with your report via Canvas.All reports should be created in RTF format.(1 + 2 + 2 + 1 + 1 = 7 marks)2. There are three datasets Inventory, Orders, and Transaction are locatedon Canvas – Assignment 3. This information has been extracted from aclothing e-retailers database.Use DATA step to read all three the datasets into SAS, then use PROCSQL procedure answering the following questions.a. Combine the three datasets as a single data set.b. Identify the web_id which has the largest total order quantity.c. Identify the web_id that has the lowest average cost.Copy and Paste the program on your answer sheet for each part.Submit the answer sheet with your report via Canvas.(4 + 2 + 2 = 8 marks)如有需要，请加QQ：99515681 或邮箱：99515681@qq.com
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