(e) Do we have evidence to conclude wrinkled hands are significantly faster at picking up dry objects? O Yes O No eTextbook and Media (f) Perform the appropriate test to determine if the wrinkled hands were significantly faster than unwrinkled hands at moving t objects. State the null and alternative hypotheses. Use uj for ua in the response area. :: Pi :: P2 :: p :: x1 :: 0 :: x :: = :: < :: > :: u : µ2 : x2 : P1 : P2 :: r Ho: vs Ha:

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Please help me with this question!!  6-5 #14

View Policies
Current Attempt in Progress
Do Hands Adapt to Water?
Researchers in the UK designed a study to determine if skin wrinkled from submersion in water performed better at handling wet
objects.1 They gathered 20 participants and had each move a set of wet objects and a set of dry objects before and after submerging
their hands in water for 30 minutes (order of trials was randomized). The response is the time (seconds) it took to move the specific
set of objects with wrinkled hands minus the time with unwrinkled hands. The mean difference for moving dry objects was 0.85
seconds with a standard deviation of 11.5 seconds. The mean difference for moving wet objects was – 15.1 seconds with a
standard deviation of 13.4 seconds.
"Kareklas, K., Nettle, D., and Smulders, T.V., “2013 VWaterinduced finger wrinkles improve handling of wet objects." Biol. Lett vol 9
(2013).
(a) Perform the appropriate test to determine if the wrinkled hands were significantly faster than unwrinkled hands at moving
dry objects.
State the null and alternative hypotheses.
Use lj for la
in the response area.
:: µ1
:: µ2
:: =
:: >
: p
: pi
: P2
:: 0
:: p
:: x1
:: x2
: p
:: P1
:: P2
:: r
Ho:
vs Ha:
eTextbook and Media
(b) Calculate the relevant test statistic.
Round your answer to two decimal places.
t-statistic =
i
eTextbook and Media
(c) Find the p-value.
Round your answer to three decimal places.
p-value =
i
eTextbook and Media
(d) What is the conclusion?
O Reject Ho.
O Do not reject Ho.
eTextbook and Media
(e) Do we have evidence to conclude wrinkled hands are significantly faster at picking up dry objects?
O Yes
O No
eTextbook and Media
(f) Perform the appropriate test to determine if the wrinkled hands were significantly faster than unwrinkled hands at moving
wet objects.
State the null and alternative hypotheses.
Use u for
in the response area.
:: #
:: <
: µ1
: µ2
: p
:: pi
:: P2
:: 0
:: x
:: x1
:: x2
: p
: P1
:: P2
:: r
Но:
vs Ha:
eTextbook and Media
(g) Calculate the relevant test statistic.
Round your answer to two decimal places.
t-statistic =
i
eTextbook and Media
(h) Find the p-value.
Round your answer to
decimal places.
p-value =
i
eTextbook and Media
(i) What is the conclusion?
O Reject Ho.
O Do not reject Ho.
eTextbook and Media
(j) Do we have evidence to conclude that wrinkled hands are significantly faster at picking up wet objects?
O Yes
O No
eTextbook and Media
::
Transcribed Image Text:View Policies Current Attempt in Progress Do Hands Adapt to Water? Researchers in the UK designed a study to determine if skin wrinkled from submersion in water performed better at handling wet objects.1 They gathered 20 participants and had each move a set of wet objects and a set of dry objects before and after submerging their hands in water for 30 minutes (order of trials was randomized). The response is the time (seconds) it took to move the specific set of objects with wrinkled hands minus the time with unwrinkled hands. The mean difference for moving dry objects was 0.85 seconds with a standard deviation of 11.5 seconds. The mean difference for moving wet objects was – 15.1 seconds with a standard deviation of 13.4 seconds. "Kareklas, K., Nettle, D., and Smulders, T.V., “2013 VWaterinduced finger wrinkles improve handling of wet objects." Biol. Lett vol 9 (2013). (a) Perform the appropriate test to determine if the wrinkled hands were significantly faster than unwrinkled hands at moving dry objects. State the null and alternative hypotheses. Use lj for la in the response area. :: µ1 :: µ2 :: = :: > : p : pi : P2 :: 0 :: p :: x1 :: x2 : p :: P1 :: P2 :: r Ho: vs Ha: eTextbook and Media (b) Calculate the relevant test statistic. Round your answer to two decimal places. t-statistic = i eTextbook and Media (c) Find the p-value. Round your answer to three decimal places. p-value = i eTextbook and Media (d) What is the conclusion? O Reject Ho. O Do not reject Ho. eTextbook and Media (e) Do we have evidence to conclude wrinkled hands are significantly faster at picking up dry objects? O Yes O No eTextbook and Media (f) Perform the appropriate test to determine if the wrinkled hands were significantly faster than unwrinkled hands at moving wet objects. State the null and alternative hypotheses. Use u for in the response area. :: # :: < : µ1 : µ2 : p :: pi :: P2 :: 0 :: x :: x1 :: x2 : p : P1 :: P2 :: r Но: vs Ha: eTextbook and Media (g) Calculate the relevant test statistic. Round your answer to two decimal places. t-statistic = i eTextbook and Media (h) Find the p-value. Round your answer to decimal places. p-value = i eTextbook and Media (i) What is the conclusion? O Reject Ho. O Do not reject Ho. eTextbook and Media (j) Do we have evidence to conclude that wrinkled hands are significantly faster at picking up wet objects? O Yes O No eTextbook and Media ::
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps

Blurred answer
Knowledge Booster
Basics of Inferential Statistics
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman