al Before After 247 211 281 217 260 190 276 214 240 156 280 214 293 195 274 181
MATLAB: An Introduction with Applications
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Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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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
247
211
281
217
260
190
276
214
240
156
280
214
293
195
8
274
181
Send data to Excel
Part: 0 / 2
Part 1 of 2
(a) Construct an 80% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment minus the
cholesterol level after. Use the TI-84 calculator and round the answers to at least one decimal place.
An 80% confidence interval for the mean reduction in cholesterol level is
< Hd
Submit Assig
Next Part
Ac
O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff0e562a8-a47f-4056-aa29-dd47accd7a45%2F8ef05625-0c83-4e72-8bbf-f172337add20%2Fkovuez8a_processed.jpeg&w=3840&q=75)
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
247
211
281
217
260
190
276
214
240
156
280
214
293
195
8
274
181
Send data to Excel
Part: 0 / 2
Part 1 of 2
(a) Construct an 80% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment minus the
cholesterol level after. Use the TI-84 calculator and round the answers to at least one decimal place.
An 80% confidence interval for the mean reduction in cholesterol level is
< Hd
Submit Assig
Next Part
Ac
O 2021 McGraw-Hill Education. All Rights Reserved. Terms of Use | Privacy
![(a) Construct an 80% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment minus the
cholesterol level after. Use the TI-84 calculator and round the answers to at least one decimal place.
An 80% confidence interval for the mean reduction in cholesterol level is
Part: 1 / 2
Part 2 of 2
(b) A physician claims that the mean reduction in cholesterol level is more than 80 milligrams per deciliter. Does the confidence interval contradict this
claim?
Because the confidence interval (Choose one)
v values greater than 80, it (Choose one)
the claim that the
mean reduction in cholesterol level is more than 80 milligrams per deciliter.
Submit Assignmer
Continue
O 2021 McGraw-Hill Education. All Rights Reserved. Terms of UseI PrivacyI Accessit
6.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Ff0e562a8-a47f-4056-aa29-dd47accd7a45%2F8ef05625-0c83-4e72-8bbf-f172337add20%2F042k6v8_processed.jpeg&w=3840&q=75)
Transcribed Image Text:(a) Construct an 80% confidence interval for the mean reduction in cholesterol level. Let d represent the cholesterol level before treatment minus the
cholesterol level after. Use the TI-84 calculator and round the answers to at least one decimal place.
An 80% confidence interval for the mean reduction in cholesterol level is
Part: 1 / 2
Part 2 of 2
(b) A physician claims that the mean reduction in cholesterol level is more than 80 milligrams per deciliter. Does the confidence interval contradict this
claim?
Because the confidence interval (Choose one)
v values greater than 80, it (Choose one)
the claim that the
mean reduction in cholesterol level is more than 80 milligrams per deciliter.
Submit Assignmer
Continue
O 2021 McGraw-Hill Education. All Rights Reserved. Terms of UseI PrivacyI Accessit
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