Jump lo level 1 An online math tutor service would like to claim that the average time spent taking a standardized test after students go through tutoring is less than the average time spent before going through tutoring. A simple random sample of students takes a pre-test, then goes through tutoring and takes a post-test. Results of the sample are shown below. What are the population parameters? Ver Pick Camation TMean prerea is the two sample hypothesis test a pared t test or an unpaired t-test? 4.438 Pick What is the level of significance? Ex0.12 What is the nul hypothesis Ho? Pick What is the alternative hypothesis H Pck v Should Ho be rejected or does Ho fail to be rejected? Pick What conclusion can be drawn from the data? v evidence exists to support the clairn that the mean time spent taking a test after tutoring is less than the mean time spent taking a test before tutoring Pick -D-

Trigonometry (MindTap Course List)
8th Edition
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Charles P. McKeague, Mark D. Turner
Chapter8: Complex Numbers And Polarcoordinates
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x Hoe
hange Activitie MeanX
zy Section 8.1- MAT 240 Applied S X
O https://learn.zybooks.com/zybook/MAT-240-14373-OL-TRAD-UG.22EWA/chapter/B/section/1?content resource. A a sa
My library > MAT 240 Applicd Statistics home >
8.1: Hypothesis tests for the difference between two population means
= zyBooks
E zyBooks catalog
O Help/FAQ e Lashonda Curry
Jump to level 1
An online math tutor service would like to claim that the average tirme spent taking a standardized test after students
go through tutoring is less than the average time spent before going through tutoring. A simple random sample of
students takes a pre-test, then goes through tutoring and takes a post-test. Results of the sample are shown below.
Atr
What are the population parameters?
Mean
75.554
Veriene
126.44 125.20
Pick
Observations
18
Peron Cerrelation
Hypothesied Men Derene
Is the two sample hypothesis test a paired f-test or an unpaired t-test?
1Stat
LAS
Pick
Mlenet
LORkal onetal
4.40
le tal
110
What is the level of significance? Ex: 0.12
LORkelttel
Confidence Level
What is the null hypothesis Ho? Pick v
What is the alternative hypothesis H? Pick v
Should Ho be rejected or does Ho fail to be rejected? Pick
What conclusion can be drawn from the data?
v evidence exists to support the clairm that the mean time spent taking a test after tutoring is less than
the mean time spent taking a test before tutoring.
Pick
2
Check
Next
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2
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IT
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Home
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K
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C
M
Shift
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+ PgUp
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Alt
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Transcribed Image Text:x Hoe hange Activitie MeanX zy Section 8.1- MAT 240 Applied S X O https://learn.zybooks.com/zybook/MAT-240-14373-OL-TRAD-UG.22EWA/chapter/B/section/1?content resource. A a sa My library > MAT 240 Applicd Statistics home > 8.1: Hypothesis tests for the difference between two population means = zyBooks E zyBooks catalog O Help/FAQ e Lashonda Curry Jump to level 1 An online math tutor service would like to claim that the average tirme spent taking a standardized test after students go through tutoring is less than the average time spent before going through tutoring. A simple random sample of students takes a pre-test, then goes through tutoring and takes a post-test. Results of the sample are shown below. Atr What are the population parameters? Mean 75.554 Veriene 126.44 125.20 Pick Observations 18 Peron Cerrelation Hypothesied Men Derene Is the two sample hypothesis test a paired f-test or an unpaired t-test? 1Stat LAS Pick Mlenet LORkal onetal 4.40 le tal 110 What is the level of significance? Ex: 0.12 LORkelttel Confidence Level What is the null hypothesis Ho? Pick v What is the alternative hypothesis H? Pick v Should Ho be rejected or does Ho fail to be rejected? Pick What conclusion can be drawn from the data? v evidence exists to support the clairm that the mean time spent taking a test after tutoring is less than the mean time spent taking a test before tutoring. Pick 2 Check Next 1011 PM 80°F A A 4/23/2022 P Type here to search A57) Iraert Priac Dolet FO & Backspace Num Lock 5 8 2 13 4 6 R IT U Q Home G J K Enter C M Shift End + PgUp Alt Ctrl Alt End Home + PgDn
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