Their total cholesterol levels before also after the diet

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Using the 5% level of significance, was there a significant change in cholesterol level.

4 individuals with high levels of cholesterol went on a special crash diet, avoiding high cholesterol foods and taking special supplements. Their total cholesterol levels before and after the diet was as follows:

participant

before

after

J.K.

287

255

L.M.M.

305

269

A.K.

243

245

R.O.S.

309

247

Using the 5% level of significance, was there a significant change in cholesterol level?
Use the steps of hypothesis testing.

 

Reference no: EM1316387

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