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In: Statistics and Probability
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions...
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions based on the following scenario. (Assume a non-directional research hypothesis (two-tailed test) and a level of significance of .05) The superintendent who collected data for Assignments 1 and 2, continued to examine the district’s data. One question that concerned the superintendent’s constituencies was the difference between the school performance scores of the superintendent’s district and a neighboring district that had similar demographic and socio-economic characteristics.
The superintendent collected the following information:
School performance scores for superintendent’s district: 72 70 70 71 68 74 66 80 71 74 68 74 74 70 76 67 65 59 72 81 82 83 68 78 80 69 75
School performance scores for comparison district: 71 62 62 71 65 74 61 60 67 63 62 71 66 62 61 71 66 68 72 65 71 86 71 89 67 73
1. What are the mean and standard deviation for the superintendent’s district? 2. What are the mean and standard deviation for the comparison district? 3. State an appropriate null hypothesis for this analysis. 4. What is the observed or computed value of t? 5. What is the value of the degrees of freedom that are reported in the output (equal variances assumed)? 6. What is the reported level of significance? 7. Based on the reported level of significance, would you reject the null hypothesis?
I MAINLY NEED HELP WITH NUMBER 8
***********************************************8. Present the results as they might appear in an article. This must include a table and narrative statement that reports and interprets the results of the Independent Samples T test.
Solutions
orchestra answered 2 years agoRelated Solutions
Assignment #3: Independent Samples T test Conduct an Independent Samples T test to answer the questions...
Assignment #3: Independent Samples T test Conduct an Independent
Samples T test to answer the questions based on the following
scenario. (Assume a non-directional research hypothesis (two-tailed
test) and a level of significance of .05) The superintendent who
collected data for Assignments 1 and 2, continued to examine the
district’s data. One question that concerned the superintendent’s
constituencies was the difference between the school performance
scores of the superintendent’s district and a neighboring district
that had similar demographic and socio-economic...
Conduct an Independent Samples T test to answer the questions based on the following scenario. (Assume...
Conduct an Independent Samples T test to answer the questions
based on the following scenario. (Assume a non-directional research
hypothesis (two-tailed test) and a level of significance of .05)
The superintendent who collected data for Assignments 1 and 2,
continued to examine the district’s data. One question that
concerned the superintendent’s constituencies was the difference
between the school performance scores of the superintendent’s
district and a neighboring district that had similar demographic
and socio-economic characteristics. The superintendent collected
the following...
Assignment 4: T test for Dependent samples Directions Conduct a T test for Dependent Samples to...
Assignment 4: T test for Dependent samples
Directions
Conduct a T test for Dependent Samples to answer the questions
based on the following scenario. (Assume a nondirectional research
hypothesis (two-tailed test) and a level of significance of
.05)
Scenario
To further examine the school performance scores of the
district, the superintendent identified schools within the district
that could be matched to schools from surrounding districts using a
series of demographic characteristics such as size, socio-economic
status, and percent special education...
Assignment #4: T test for Dependent Samples Directions: Conduct a T test for Dependent Samples to...
Assignment #4: T test for Dependent Samples
Directions: Conduct a T test for Dependent Samples to answer the
questions based on the following scenario. (Assume a nondirectional
research hypothesis (two-tailed test) and a level of significance
of .05)
To further examine the school performance scores of the
district, the superintendent identified schools within the district
that could be matched to schools from surrounding districts using a
series of demographic characteristics such as size, socio-economic
status, and percent special education students....
Indicate which test (dependent samples t-test, independent samples t-test, independent samples z-test) is most appropriate for...
Indicate which test (dependent samples t-test, independent
samples t-test, independent samples z-test) is most appropriate for
the following situation:
i. Comparison of mean recycling participation between 9 large
cities and 11 small cities
ii. Comparison of the weights of 16 Toronto Maple Leaf rookies
at the beginning versus the end of the regular NHL season.
iii. Comparison of fin length of 35 male and 37 female brook
trout sampled in Spruce Lake, Nottingham Forest.
iv. Comparison of the mass of...
2.2. Indicate which test (paired samples (ie dependent) t-test, independent two samples t-test, one-sample t-test, independent...
2.2. Indicate which test (paired samples (ie dependent) t-test,
independent two samples t-test, one-sample t-test, independent
samples z-test) is most appropriate for the following situations :
A. Comparison of weight gain of two groups of 18 cows where one
group was raised following standard practices and the other group
was raised following “organic” standards.
B. Comparison of scores on a fitness test of Olympic-class
distance runners (n=20) with the national average score of people
of a similar age range (22-31...
Conduct an independent samples t-test using the following data: A researcher is interested in testing how...
Conduct an independent samples t-test using the following
data:
A researcher is interested in testing how listening to music
affects exercise performance. She has one group listen to Tool and
another group listen to Jonas Brothers. The number of consecutive
reps on the bench before stopping was being measured. The following
data was collected:
Listening to Tool: 15, 18, 16, 19, 20
Listening to Jonas Brothers: 10, 9, 11, 13
a. What are the null and research
hypotheses?
b. Determine...
1. Identify which test the scenario will use: independent samples t test, paired samples t test,...
1. Identify which test the scenario will use:
independent samples t test, paired samples t test, chi square test
for goodness of fit, chi square test for independence or chi square
test for homogeneity.
A. A researcher goes to the parking lot at a large grocery chain
and observes whether each person is male or female and whether they
return the cart to the correct spot before Chi leaving (yes or
no).
B. Amber Sanchez, a statistics student, collected data...
Independent Samples T-Test by Group (receiving intervention vs. control group on waiting list) Independent Samples T-Test...
Independent Samples T-Test by
Group (receiving intervention vs. control group on
waiting
list)
Independent Samples
T-Test
t
df
p
Uscreen
-7.495
98
< .001
Note.
Student's t-test.
Independent Samples T-Test by
Race (White vs. Black/Hispanic)
Independent Samples
T-Test
t
df
p
Uscreen
-2.473
98
0.015
Note.
Student's t-test.
Independent Samples T-Test by
Age (21-24 vs 25-30)
Independent Samples
T-Test
t
df
p
Uscreen
1.478
98
0.143
ᵃ
Note.
Student's t-test.
ᵃ Levene's test is significant
(p < .05), suggesting a...
Paired Samples t-TEST After you run the t-test, answer these questions (type responses in this box):...
Paired Samples t-TEST
After you run the t-test, answer these questions (type responses
in this box):
1. What is the p-value (the significance)?
2. Is the difference between mean score for pretest and posttest
statistically significant?
Paired Samples
t-TEST
Statistics Competency
Pretest
Posttest
65
85
43
99
96
90
69
87
9
65
56
66
32
73
87
99
88
90
75
80
100
80
85
99
88
89
35
90
100
88
75
89
99
90
77
89
90...
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