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MTH 243 - Smoking & Cholesterol Lab

A study examining the health risks of smoking measured the cholesterol levels of peoplein the United Stateswho had smoked for at least 25 years and people of similar ages who had smoked for no more than 5 years and then stopped. Download the"SmokingandCholesterolData.xlsx" filefrom D2Land complete the following lab activities.

A)Who or what are the observational units?(i.e. Who or what is being observed to generate the data?):(1 pt)

B)What is / are the variable(s)of interest?(i.e. What is being measured?):(1 pt)

C)What is / are the variable type(s)?(EitherCategorical or Numerical):(1 pt)

D)Using the Rossman / Chance Descriptive Statistics applet, input the correctly formatted data-includingthelabels (in the first row: Ex-Smokers and Smokers) and theresponse variableof interest(cholesterol level).Thencreate aHistogram(12 Bins)of the Ex-Smokers & Smokers datawith a Boxplot for each distributionand be sure toclick on the"Show Outliers"button. Lastly,take a snapshot of the screen including thehistogram (12bins),BoxPlotwith Outliers,and"actual"Mean, Median, SD, Q1, Q3,and IQRof both distributionsto paste infrom the R/C Appletfor each distribution below. (4 pts)

Screenshot of "entire" R/C Applet:

Ex-SmokersDescriptive Statistics:

Smokers Descriptive Statistics:

***First Classroom Checkpoint- Go to our D2L Navbar and select "Surveys". Start the "Smokingand Cholesterol" Survey and answer questions#1and #2to checksome of your responses to the above questions. You may just leave the "Smokingand Cholesterol" Survey open for use throughout this Lab Activity***J

E)Describe both distributions -Including:(3 pts) Shape(sentence formwith explanation- Symmetric or Skewed+direction? Mode(s)?Outlier(s)?): Center(numericvalue& units): Spread(numericvalue& units):

F)Analyze the statistics.What somewhatsurprising discoverydo you notice whencomparingthese 2 distributions? Provide a sentence form possible reason for this surprising comparison of statistics for these 2 distributions.

Smokers and Cholesterol V Data ED Q 1 of 1 View as Text Download > > Ex-Smokers(mg) Smokers(mg) 250 225 134 211 All measurements are in milligrams (mg) of cholesterol 300 209 measured for each participant. 249 284 213 258 310 216 175 196 174 288 328 250 160 200 188 209 321 280 213 225 257 256 292 243 200 200 271 213 227 246 238 225 163 237 263 232 192 267 242 232 249 216 242 216 267 243 243 200 217 155 267 216 218 271 217 230 183 309 228 183