3) On a late-night infomercial, a new dealer of pre-packaged diet meals and non-FDA approved diet supplements promises viewers that they will lose an average of at least 20 pounds in just six weeks (individual results may vary). A consumer watchdog who watches too much late-night TV wants to dispute this claim. She digs up a random sample of 16 wannabe weight losers who have used these products for six weeks. each of these people is as follows: The number of pounds lost by 18 19 22 17 15 23 18 19 19 17 20 18 19 22 17 18

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section11.4: Plane Curves And Parametric Equations
Problem 43E
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On a late-night infomercial, a new dealer of pre-packaged diet meals and non-FDA approved diet supplements promises viewers that they will lose an average of at least 20 pounds in just six weeks (individual results may vary). A consumer watchdog who watches too much late-night TV wants to dispute this claim. She digs up a random sample of 16 wannabe weight losers who have used these products for six weeks. The number of pounds lost by each of these people is as follows: 18 19 22 17 15 23 18 19 19 17 20 18 19 22 17 18 Upon consulting a nutritional expert, she also receives assurance that it is reasonable to assume σ = 2.4 for the population of consumers of this supplement.

State carefully the conclusion you would reach at the 5% level of significance.

Current Students Home
B handin 8– Fall 2020 MA110 Elem X
G On a late-night infomercial, a nev X
pard.com/webapps/blackboard/execute/content/file?cmd%3Dview&content_id%3D 1556757_1&course_id=_20972_1
Current Students
UCP Litmos
UCP email U UltiPro LOGIN
6 New Tab b My Questions | bart..
incoming students is different trom 100?
3) On a late-night infomercial, a new dealer of pre-packaged diet meals and
non-FDA approved diet supplements promises viewers that they will lose an
average of at least 20 pounds in just six weeks (individual results may
vary). A consumer watchdog who watches too much late-night TV wants to
dispute this claim.
who have used these products for six weeks.
each of these people is as follows :
She digs up a random sample of 16 wannabe weight losers
The number of pounds lost by
18 19
22 17 15 23 18 19 19
20
18
19
22 17 18
Upon consulting a nutritional expert, she also receives assurance that it is
reasonable to assume o = 2.4 for the population of consumers of this
supplement.
%D
a) Find the sample mean.
b) Do these data give good evidence that the true mean weight loss is less
than 20 pounds? Carry out the appropriate test: state nulī and alternative
hypotheses, identify the test statistic, determine the P-value.
c) State carefully the conclusion you would reach at the 1% level of
significance.
d) State carefully the conclusion you would reach at the 5% level of
significance.
a *
5:46 PM
earch
11/12/2020
Transcribed Image Text:Current Students Home B handin 8– Fall 2020 MA110 Elem X G On a late-night infomercial, a nev X pard.com/webapps/blackboard/execute/content/file?cmd%3Dview&content_id%3D 1556757_1&course_id=_20972_1 Current Students UCP Litmos UCP email U UltiPro LOGIN 6 New Tab b My Questions | bart.. incoming students is different trom 100? 3) On a late-night infomercial, a new dealer of pre-packaged diet meals and non-FDA approved diet supplements promises viewers that they will lose an average of at least 20 pounds in just six weeks (individual results may vary). A consumer watchdog who watches too much late-night TV wants to dispute this claim. who have used these products for six weeks. each of these people is as follows : She digs up a random sample of 16 wannabe weight losers The number of pounds lost by 18 19 22 17 15 23 18 19 19 20 18 19 22 17 18 Upon consulting a nutritional expert, she also receives assurance that it is reasonable to assume o = 2.4 for the population of consumers of this supplement. %D a) Find the sample mean. b) Do these data give good evidence that the true mean weight loss is less than 20 pounds? Carry out the appropriate test: state nulī and alternative hypotheses, identify the test statistic, determine the P-value. c) State carefully the conclusion you would reach at the 1% level of significance. d) State carefully the conclusion you would reach at the 5% level of significance. a * 5:46 PM earch 11/12/2020
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