irst-born children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that first-born children have undivided attention from their parents. If this explanation is correct, then it is also reasonable that twins should show slower language development than single children and that triplets should be even slower. In 1937, Davis found exactly this result. The following hypothetical data demonstrate this relationship. The dependent variable is a measure of language skill at age three. Do the data provide evidence for significant differences between the three populations? Test at the .05 level. Single Child Twin Child Triplet Child 9 8 9 7 9 7 6 7 4 9 3 5 8 1 3 State the null and alternative hypothesis. Fill in the following table of descriptive statistics. Descriptive Statistics N Mean SD Single Twin Triplet Also, complete
irst-born children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that first-born children have undivided attention from their parents. If this explanation is correct, then it is also reasonable that twins should show slower language development than single children and that triplets should be even slower. In 1937, Davis found exactly this result. The following hypothetical data demonstrate this relationship. The dependent variable is a measure of language skill at age three. Do the data provide evidence for significant differences between the three populations? Test at the .05 level. Single Child Twin Child Triplet Child 9 8 9 7 9 7 6 7 4 9 3 5 8 1 3 State the null and alternative hypothesis. Fill in the following table of descriptive statistics. Descriptive Statistics N Mean SD Single Twin Triplet Also, complete
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.3: Using Data Displays
Problem 1E
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First-born children tend to develop language skills faster than their younger siblings. One possible explanation for this phenomenon is that first-born children have undivided attention from their parents. If this explanation is correct, then it is also reasonable that twins should show slower language development than single children and that triplets should be even slower. In 1937, Davis found exactly this result. The following hypothetical data demonstrate this relationship. The dependent variable is a measure of language skill at age three. Do the data provide evidence for significant differences between the three populations? Test at the .05 level.
Single Child Twin Child Triplet Child
9
8
9
7
9 7
6
7
4
9 3
5
8
1
3
State the null and alternative hypothesis.
Fill in the following table of descriptive statistics .
Descriptive Statistics
N Mean SD
Single
Twin
Triplet
Also, complete the following ANOVA table.
Analysis of Variance of Sociability Data
Source SS df MS F
Between Groups
Within Groups
If the F is statistically significant at p < .05 place an asterisk next to it and go on to compute a post-hoc test to determine which pairs of means are significantly different.
Write a brief conclusion (interpretation) of the results.
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First-born children tend to develop language skills faster than their younger siblings. One
possible explanation for this phenomenon is that first-born children have undivided attention
from their parents. If this explanation is correct, then it is also reasonable that twins should show
slower language development than single children and that triplets should be even slower. In
1937, Davis found exactly this result. The following hypothetical data demonstrate this
relationship. The dependent variable is a measure of language skill at age three. Do the data
provide evidence for significant differences between the three populations? Test at the .05 level.
Triplet Child
3.
Single Child
Twin Child
8.
6.
8
4.
3
State the null and alternative hypothesis.
Fill in the following table of descriptive statistics.
Descriptive Statistics
Mean
SD
Single
Twin
Triplet
D Focus](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F27bb589f-615c-4cf8-a6ef-dee6f96f919a%2F8fcbaebe-f21a-427e-b94d-f86850d23388%2Fuwi5fe_processed.jpeg&w=3840&q=75)
Transcribed Image Text:ubal
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First-born children tend to develop language skills faster than their younger siblings. One
possible explanation for this phenomenon is that first-born children have undivided attention
from their parents. If this explanation is correct, then it is also reasonable that twins should show
slower language development than single children and that triplets should be even slower. In
1937, Davis found exactly this result. The following hypothetical data demonstrate this
relationship. The dependent variable is a measure of language skill at age three. Do the data
provide evidence for significant differences between the three populations? Test at the .05 level.
Triplet Child
3.
Single Child
Twin Child
8.
6.
8
4.
3
State the null and alternative hypothesis.
Fill in the following table of descriptive statistics.
Descriptive Statistics
Mean
SD
Single
Twin
Triplet
D Focus
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