tact sport athletes than for the noncontact athletes?Use a one-tailed test with a = .05.b. Compute the value of r (percentage of varianceaccounted for) for these data.14. In the Chapter Preview we presented a study show-ing that handling money reduces the perception pain(Zhou, Vohs, & Baumeister, 2009). In the experiment,a group of college students was told that they wereparticipating in a manual dexterity study. Half of thestudents were given a stack of money to count and theother half gota stack of blank pieces of paper. Afterthe counting task, the participants were asked to diptheir hands into bowls of very hot water (122°F) andrate how uncomfortable it was. The following datashow ratings of pain similar to the results obtainedin the study. 332CHAPTER 10 | The t Test for Two Independent SampSit ol nBlCounting MoneyCounting Paper811CLonbrbos 13klelonbuonl bi1000.T108S40100*119E0Ac15ES701r Tr1214100ai bonersSTETPCTsOU 2qust ova1251 bolrh ota. Is there a significant difference in reported painbetween the two conditions? Use a two-tailed testjacs (S10) Istb ionilhllwith o .01.TAoMb. Compute Cohen's d to estimate the size of thetreatment effect.5. In a classic study in the area of problem solving,Katona (1940) compared the effectiveness of twomethods of instruction. One group of participants wasshown the exact, step-by-step procedure for solving aproblem and was required to memorize the solution.Participants ina second group were encouraged tostudy the problem and find the solution on their2U3

Question
Asked Nov 27, 2019
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Number 14 

tact sport athletes than for the noncontact athletes?
Use a one-tailed test with a = .05.
b. Compute the value of r (percentage of variance
accounted for) for these data.
14. In the Chapter Preview we presented a study show-
ing that handling money reduces the perception pain
(Zhou, Vohs, & Baumeister, 2009). In the experiment,
a group of college students was told that they were
participating in a manual dexterity study. Half of the
students were given a stack of money to count and the
other half gota stack of blank pieces of paper. After
the counting task, the participants were asked to dip
their hands into bowls of very hot water (122°F) and
rate how uncomfortable it was. The following data
show ratings of pain similar to the results obtained
in the study.
help_outline

Image Transcriptionclose

tact sport athletes than for the noncontact athletes? Use a one-tailed test with a = .05. b. Compute the value of r (percentage of variance accounted for) for these data. 14. In the Chapter Preview we presented a study show- ing that handling money reduces the perception pain (Zhou, Vohs, & Baumeister, 2009). In the experiment, a group of college students was told that they were participating in a manual dexterity study. Half of the students were given a stack of money to count and the other half gota stack of blank pieces of paper. After the counting task, the participants were asked to dip their hands into bowls of very hot water (122°F) and rate how uncomfortable it was. The following data show ratings of pain similar to the results obtained in the study.

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332
CHAPTER 10 | The t Test for Two Independent Samp
Sit ol nBl
Counting Money
Counting Paper
8
11
CLonb
rbos 13
klelonb
uonl bi10
00.
T
10
8S
40
10
0*
11
9
E0
Ac
15
ES
7
01
r Tr
12
14
10
0ai boners
STETPCT
sOU 2qu
st ova
1251 bol
rh ot
a. Is there a significant difference in reported pain
between the two conditions? Use a two-tailed test
jacs (S10) Istb ionilh
llwith o .01.
TAoM
b. Compute Cohen's d to estimate the size of the
treatment effect.
5. In a classic study in the area of problem solving,
Katona (1940) compared the effectiveness of two
methods of instruction. One group of participants was
shown the exact, step-by-step procedure for solving a
problem and was required to memorize the solution.
Participants ina second group were encouraged to
study the problem and find the solution on their
2U3
help_outline

Image Transcriptionclose

332 CHAPTER 10 | The t Test for Two Independent Samp Sit ol nBl Counting Money Counting Paper 8 11 CLonb rbos 13 klelonb uonl bi10 00. T 10 8S 40 10 0* 11 9 E0 Ac 15 ES 7 01 r Tr 12 14 10 0ai boners STETPCT sOU 2qu st ova 1251 bol rh ot a. Is there a significant difference in reported pain between the two conditions? Use a two-tailed test jacs (S10) Istb ionilh llwith o .01. TAoM b. Compute Cohen's d to estimate the size of the treatment effect. 5. In a classic study in the area of problem solving, Katona (1940) compared the effectiveness of two methods of instruction. One group of participants was shown the exact, step-by-step procedure for solving a problem and was required to memorize the solution. Participants ina second group were encouraged to study the problem and find the solution on their 2U3

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Expert Answer

Step 1

Consider that n1 and n2 are the sample sizes of counting money and counting paper, respectively.

Consider that S1 and S2 are the sample standard deviations of counting money and counting paper, respectively.

Consider that and are the sample means of counting money and
counting paper, respectively
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Image Transcriptionclose

Consider that and are the sample means of counting money and counting paper, respectively

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Step 2

Since, the given information is that:

9
п, 3D9
7+8+..12+5 _ 55
9
9+11 14 10
= 11.33
10
Σ-s)
п-1
(7-7.55) +(8-7.55) +.
.+(12-7.55)+(5-7.5s)
_
9-1
= 2.29
(130-130.28)+(102-130.28) +..+(120-130.28) +(139-130.28)
_
7-
= 2.18
help_outline

Image Transcriptionclose

9 п, 3D9 7+8+..12+5 _ 55 9 9+11 14 10 = 11.33 10 Σ-s) п-1 (7-7.55) +(8-7.55) +. .+(12-7.55)+(5-7.5s) _ 9-1 = 2.29 (130-130.28)+(102-130.28) +..+(120-130.28) +(139-130.28) _ 7- = 2.18

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Step 3

Further,...

Consider that 4 And /i2 are the population mean for counting money
and counting paper, respectively
Thus
The null and alternative hypotheses are:
help_outline

Image Transcriptionclose

Consider that 4 And /i2 are the population mean for counting money and counting paper, respectively Thus The null and alternative hypotheses are:

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