please compute the test statistic Use the following information from a multiple regression analysisb, = 3n= 20b, =2Sp, = 1.1So, = 0.9a. Which variable has the largest slope, in units of at statistic?b. Construct a 95% confidence interval estimate of the population slope, B.c. At the 0.05 level of significance, determine whether each independent variable makes a significant contribution to the regression model. On the basis of these results, indicate the independent variables to include in this model...a. Which variable has the largest slope, in units of at statistic?The variable X, has the largest slope, with tsTAT = 3.33(Roundtwo decimal places as needed.)b. Construct a 95% confidence interval estimate of the population slope, B,.- 0.321 sB, s 4.321(Round to three decimal places as needed.)c. Begin by determining whether X, makes a significant contribution to the regression model. Determine the null and alternative hypotheses. Choose the correct answer below.OA. Ho: B,#0H,: B, =0O B. Ho: B, =0H,: B, <0C. Họ: B, =0H: B, #0O D. Ho: B1 =0H;: B, >0Compute the test statistic.STAT =D(Round to two decimal places as needed.)

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Answered: Use the following information from a…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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*PLEASE show in excel A different investigator conducts a second study to investigate whether there is a difference in mean PEF in children with chronic bronchitis as compared to those without. Data on PEF are collected and summarized below. Based on the data, is there statistical evidence of a lower mean PEF in children with chronic bronchitis as compared to those without? Run the appropriate test at a=0.05. Group Number of Children Mean PEF Std Dev PEF Chronic Bronchitis 25 281 68 No Chronic Bronchitis 25 319 74 Step 1. Set up hypotheses and determine level of significance. Ho: H1: alpha: Step 2. Select the appropriate test statistic and give its formula. Step 3. Set up decision rule. Step 4. Compute the test statistic Step 5. Conclusion.
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