In an experiment, 19 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby witnesses either a helper toy push theclimberthe hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random fashion. A second part of this experiment showed the climber approach the helperupQuestion Helptoy, which is not a surprising action, and then the climber approached the hinderer toy, which is a surprising action. The amount of time the baby watched each event was recorded. The mean difference in time spentwatching the climber approach the hinderer toy versus watching the climber approach the helper toy was 1.28 seconds with a standard deviation of 1.67 seconds. Complete parts (a) through (c).Click the icon to view the table of critical t-values.(a) State the null and altermative hypotheses to determine if babies tend to look at the hinderer toy longer than the helper toy. Let HHhinderer Hhelper Where Hinderer is the population mean time babies spendwatching the climber approach the hinderer toy and helper is the population mean time babies spend watching the climber approach the helper toy.(b) Assuming the differences are normally distributed with no outliers, test if the difference in the amount of time the baby will watch the hinderer toy versus the helper toy is greater than 0 at the 0.01 level ofsignificance.Find the test statistic for this hypothesis test.(Round to two decimal places as needed.)Click to select your answer(s).?11:41 PMType here to search2011/24/2019ASUSdeteteort scpausebreak12insertf10Sysra19f8f7f6f5f4f3f2f1backspaceesc0&76#432PUYTREW In an experiment, 19 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby witnesses either a helper toy push theclimberQuestion Helpthe hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random fashion. A second part of this experiment showed the climber approach the helpertoy, which is not a surprising action, and then the climber approached the hinderer toy, which is a surprising action. The amount of time the baby watched each event was recorded. The mean difference in time spentupwatching the climber approach the hinderer toy versus watching the climber approach the helper toy was 1.28 seconds with a standard deviation of 1.67 seconds. Complete parts (a) through (c).Click the icon to view the table of critical t-values.State the conclusion for this hypothesis test.A.Do not reject H. There is not sufficient evidence at the a 0.01 level of significance to conclude that the difference is greater than 0.Reject H. There is sufficient evidence at the a 0.01 level of significance to conclude that the difference is greater than 0.B.C.Do not reject Ho. There is sufficient evidence at the a = 0.01 level of significance to conclude that the difference is greater than 0.D.Reject H. There is not sufficient evidence at the a = 0.01 level of significance to conclude that the difference is greater than 0.(c) What do you think the results of this experiment imply about babies' ability to assess surprising behavior?A. There is sufficient evidence that babies may have the ability to assess surprising behavior. Further experimentation should be performedB. There is not sufficient evidence that babies have the abilitv to assess surprisina behaviorClick to select your answer(s).11:41 PMType here to search2011/24/2019ASUSोT2pausef11i10breakf9bsksf817Xf6f5f413f2f7esc&7Z6#435P96X

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Asked Nov 25, 2019
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In an experiment, 19 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby witnesses either a helper toy push the
climber
the hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random fashion. A second part of this experiment showed the climber approach the helper
up
Question Help
toy, which is not a surprising action, and then the climber approached the hinderer toy, which is a surprising action. The amount of time the baby watched each event was recorded. The mean difference in time spent
watching the climber approach the hinderer toy versus watching the climber approach the helper toy was 1.28 seconds with a standard deviation of 1.67 seconds. Complete parts (a) through (c).
Click the icon to view the table of critical t-values.
(a) State the null and altermative hypotheses to determine if babies tend to look at the hinderer toy longer than the helper toy. Let HHhinderer Hhelper Where Hinderer is the population mean time babies spend
watching the climber approach the hinderer toy and helper is the population mean time babies spend watching the climber approach the helper toy.
(b) Assuming the differences are normally distributed with no outliers, test if the difference in the amount of time the baby will watch the hinderer toy versus the helper toy is greater than 0 at the 0.01 level of
significance.
Find the test statistic for this hypothesis test.
(Round to two decimal places as needed.)
Click to select your answer(s).
?
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In an experiment, 19 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby witnesses either a helper toy push the climber the hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random fashion. A second part of this experiment showed the climber approach the helper up Question Help toy, which is not a surprising action, and then the climber approached the hinderer toy, which is a surprising action. The amount of time the baby watched each event was recorded. The mean difference in time spent watching the climber approach the hinderer toy versus watching the climber approach the helper toy was 1.28 seconds with a standard deviation of 1.67 seconds. Complete parts (a) through (c). Click the icon to view the table of critical t-values. (a) State the null and altermative hypotheses to determine if babies tend to look at the hinderer toy longer than the helper toy. Let HHhinderer Hhelper Where Hinderer is the population mean time babies spend watching the climber approach the hinderer toy and helper is the population mean time babies spend watching the climber approach the helper toy. (b) Assuming the differences are normally distributed with no outliers, test if the difference in the amount of time the baby will watch the hinderer toy versus the helper toy is greater than 0 at the 0.01 level of significance. Find the test statistic for this hypothesis test. (Round to two decimal places as needed.) Click to select your answer(s). ? 11:41 PM Type here to search 20 11/24/2019 ASUS detete ort sc pause break 12 insert f10 Sysra 19 f8 f7 f6 f5 f4 f3 f2 f1 backspace esc 0 & 7 6 # 4 3 2 P U Y T R E W

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In an experiment, 19 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby witnesses either a helper toy push the
climber
Question Help
the hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random fashion. A second part of this experiment showed the climber approach the helper
toy, which is not a surprising action, and then the climber approached the hinderer toy, which is a surprising action. The amount of time the baby watched each event was recorded. The mean difference in time spent
up
watching the climber approach the hinderer toy versus watching the climber approach the helper toy was 1.28 seconds with a standard deviation of 1.67 seconds. Complete parts (a) through (c).
Click the icon to view the table of critical t-values.
State the conclusion for this hypothesis test.
A.
Do not reject H. There is not sufficient evidence at the a 0.01 level of significance to conclude that the difference is greater than 0.
Reject H. There is sufficient evidence at the a 0.01 level of significance to conclude that the difference is greater than 0.
B.
C.
Do not reject Ho. There is sufficient evidence at the a = 0.01 level of significance to conclude that the difference is greater than 0.
D.
Reject H. There is not sufficient evidence at the a = 0.01 level of significance to conclude that the difference is greater than 0.
(c) What do you think the results of this experiment imply about babies' ability to assess surprising behavior?
A. There is sufficient evidence that babies may have the ability to assess surprising behavior. Further experimentation should be performed
B. There is not sufficient evidence that babies have the abilitv to assess surprisina behavior
Click to select your answer(s).
11:41 PM
Type here to search
20
11/24/2019
ASUS
ो
T2
pause
f11
i10
break
f9
bsks
f8
17
X
f6
f5
f4
13
f2
f7
esc
&
7
Z
6
#
4
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5
P
96
X
help_outline

Image Transcriptionclose

In an experiment, 19 babies were asked to watch a climber attempt to ascend a hill. On two occasions, the baby witnesses the climber fail to make the climb. Then, the baby witnesses either a helper toy push the climber Question Help the hill, or a hinderer toy preventing the climber from making the ascent. The toys were shown to each baby in a random fashion. A second part of this experiment showed the climber approach the helper toy, which is not a surprising action, and then the climber approached the hinderer toy, which is a surprising action. The amount of time the baby watched each event was recorded. The mean difference in time spent up watching the climber approach the hinderer toy versus watching the climber approach the helper toy was 1.28 seconds with a standard deviation of 1.67 seconds. Complete parts (a) through (c). Click the icon to view the table of critical t-values. State the conclusion for this hypothesis test. A. Do not reject H. There is not sufficient evidence at the a 0.01 level of significance to conclude that the difference is greater than 0. Reject H. There is sufficient evidence at the a 0.01 level of significance to conclude that the difference is greater than 0. B. C. Do not reject Ho. There is sufficient evidence at the a = 0.01 level of significance to conclude that the difference is greater than 0. D. Reject H. There is not sufficient evidence at the a = 0.01 level of significance to conclude that the difference is greater than 0. (c) What do you think the results of this experiment imply about babies' ability to assess surprising behavior? A. There is sufficient evidence that babies may have the ability to assess surprising behavior. Further experimentation should be performed B. There is not sufficient evidence that babies have the abilitv to assess surprisina behavior Click to select your answer(s). 11:41 PM Type here to search 20 11/24/2019 ASUS ो T2 pause f11 i10 break f9 bsks f8 17 X f6 f5 f4 13 f2 f7 esc & 7 Z 6 # 4 3 5 P 96 X

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Expert Answer

Step 1

Given data

Mean difference in the time spent watching the climber approach the hinderer toy versus watching the climber approach the helper toy = 1.28

i.e.d 1.28
standard deviation sa = 1.67
a)
Ho Hd0
0 Pri IH
b) Calculation of test statistic
Test statistic is given by
d Ha
1.28 0
= 3.34
1.67
Vn
V19
Test statistic is 3.34
Calculation of p-value
p-value 0.0018 (From Excel -T.DIST.RT(3.34,18))
t-critical = 2.5523 (From Excel =T.INV(0.01,18))
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i.e.d 1.28 standard deviation sa = 1.67 a) Ho Hd0 0 Pri IH b) Calculation of test statistic Test statistic is given by d Ha 1.28 0 = 3.34 1.67 Vn V19 Test statistic is 3.34 Calculation of p-value p-value 0.0018 (From Excel -T.DIST.RT(3.34,18)) t-critical = 2.5523 (From Excel =T.INV(0.01,18))

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Step 2

Conclusion 

Since t > t-critical

Reject H0, there is  sufficient evidence at the rate α = 0....

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