Question

Using the data set SASHELP.HEART, recode the variable AgeatStart into a new dichotomous variable called AgeCategory using the following age ranges 0-49 = 1, 50+ = 2. The “DATA” tab of Recode Ranges is shown to the right. Run a two sample t-test comparing cholesterol levels between the two groups, age < 50 & age 50+. a) What is the null hypothesis? b) Is there a difference in cholesterol between the two age groups? Is it statistically significant? c) Cut and paste your results below.

          Using the data set SASHELP.HEART, recode the variable AgeatStart into a new dichotomous variable called AgeCategory using the following age ranges 0-49 = 1, 50+ = 2.  The “DATA” tab of Recode Ranges is shown to the right.  Run a two sample t-test comparing cholesterol levels between the two groups, age < 50 & age 50+. 
a) What is the null hypothesis? 
b) Is there a difference in cholesterol between the two age groups? Is it statistically significant? 
c) Cut and paste your results below.

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Added by Carlos L.

Elementary Statistics a Step by Step Approach

Allan G. Bluman 9th Edition

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Solved by Expert Madhur L

05/19/2023

Step 1

HEART dataset. We will use a simple IF-THEN statement in SAS to achieve this. Here is the code: ```sas DATA Heart_Age_Categories; SET SASHELP.HEART; IF AgeatStart <= 49 THEN AgeCategory = 1; ELSE AgeCategory = 2; RUN; ``` This code creates a new dataset Show more…

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Using the data set SASHELP.HEART, recode the variable AgeatStart into a new dichotomous variable called AgeCategory using the following age ranges 0-49 = 1, 50+ = 2. The “DATA” tab of Recode Ranges is shown to the right. Run a two sample t-test comparing cholesterol levels between the two groups, age < 50 & age 50+. a) What is the null hypothesis? b) Is there a difference in cholesterol between the two age groups? Is it statistically significant? c) Cut and paste your results below.

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