High Cholesterol: A group of eight individuals with high cholesterol levels were given a new drug that was designed to lower cholesterol levels. Cholesterol levels, in milligrams per deciliter, were measured before and after treatment for each individual, with the following results: Individual Before After 1 296 218 2 289 214 3 280 180 4 295 205 5 281 168 6 281 201 7 283 170 8 285 182   Send data to Excel Part: 0 / 2 0 of 2 Parts Complete   Part 1 of 2     (a) Use a calculator to construct a  90%  confidence interval for the mean reduction in cholesterol level. Round your answers to at least one decimal place.   The confidence interval for the mean reduction in cholesterol level is

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High Cholesterol: A group of eight individuals with high cholesterol levels were given a new drug that was designed to lower cholesterol levels. Cholesterol levels, in milligrams per deciliter, were measured before and after treatment for each individual, with the following results:

Individual Before After
1
296
218
2
289
214
3
280
180
4
295
205
5
281
168
6
281
201
7
283
170
8
285
182
 
Send data to Excel
Part: 0 / 2
0 of 2 Parts Complete
 
Part 1 of 2
 
 

(a) Use a calculator to construct a 

90%

 confidence interval for the mean reduction in cholesterol level. Round your answers to at least one decimal place.

 

The confidence interval for the mean reduction in cholesterol level is 
.
 
 
 

 

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