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 1 256 202 2 234 215 3 261 176 4 258 201 5 263 173 6. 265 224 7 280 196 272 188 Send data to Excel Part: 0 / 2 Part 1 of 2 (a) Construct a 90% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment minus the cholesterol level after. Use tables to find the critical value and round the answers to at least one decimal place. A 90% confidence interval for the mean reduction in cholesterol level is < µ,

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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
256
202
2
234
215
3
261
176
4
258
201
5
263
173
265
224
7
280
196
8
272
188
Send data to Excel
Part: 0 / 2
Part 1 of 2
(a) Construct a 90% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment
minus the cholesterol level after. Use tables to find the critical value and round the answers to at least one decimal place.
A 90% confidence interval for the mean reduction in cholesterol level is
<H, <].
Prl>
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Transcribed Image Text: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 1 256 202 2 234 215 3 261 176 4 258 201 5 263 173 265 224 7 280 196 8 272 188 Send data to Excel Part: 0 / 2 Part 1 of 2 (a) Construct a 90% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment minus the cholesterol level after. Use tables to find the critical value and round the answers to at least one decimal place. A 90% confidence interval for the mean reduction in cholesterol level is <H, <]. Prl> Skip Part Check Save For Later Submit As
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