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In: Math
Answer the questions below using the appropriate statistical technique. For questions involving the use of hypothesis...
Answer the questions below using the appropriate statistical technique. For questions involving the use of hypothesis testing, you must:
1. State the null and research hypotheses
2. Provide the Z(critical), T(critical), or χ 2 (critical) score corresponding to the α threshold for your test
3. Provide your test statistic
4. Provide your decision about statistical significance
A random sample of 350 persons yields a sample mean of 105 and a sample standard deviation of 10. Construct three different confidence intervals to estimate the population mean, using 95%, 99%, and 99.9% levels of confidence. What happens to the interval width as the confidence level increases? Why?
Solutions
milcah answered 5 months agoRelated Solutions
7. Conduct the appropriate statistical test that will answer your hypothesis - Such as regression analysis,...
7. Conduct the appropriate statistical test that will answer
your hypothesis - Such as regression analysis,
single t-test, independent t-test, cross-tabulations,
Chi-square, or One-Way ANOVA. Explain your justification
for using the test based on the type of data and the level of
measurement
Living arrangement pf Seniors
Sense of isolation
Housing development
Integrated Neighborhood
Totals
Low
80
30
110
High
20
120
140
Totals
100
150
250
Choose the proper statistical technique to use for each scenario from the list below. A. One...
Choose the proper statistical technique to use for each scenario
from the list below.
A. One sample test for a mean
B. One sample test for a proportion
C. Two sample test for means- independent
D. Two sample test for means – paired
E. Two sample test for proportions
F. Chi square test of independence
G. Chi square test for homogeneity of proportions
H. One Way Analysis of Variance
I. Correlation
J. Simple regression
K. Multiple regression
L. Time series...
ou may need to use the appropriate technology to answer this question. A factorial experiment involving...
ou may need to use the appropriate technology to answer this
question.
A factorial experiment involving two levels of factor A and
three levels of factor B resulted in the following data.
Factor B
Level 1
Level 2
Level 3
Factor A
Level 1
135
94
71
165
70
89
Level 2
125
123
124
95
101
140
Test for any significant main effects and any interaction. Use
α = 0.05.
Find the value of the test statistic for factor...
You may need to use the appropriate technology to answer this question. A factorial experiment involving...
You may need to use the appropriate technology to answer this
question.
A factorial experiment involving two levels of factor A and
three levels of factor B resulted in the following data.
Factor B
Level 1
Level 2
Level 3
Factor A
Level 1
135
90
75
165
66
93
Level 2
125
127
120
95
105
136
Test for any significant main effects and any interaction. Use
α = 0.05.
Find the value of the test statistic for factor...
You may need to use the appropriate technology to answer this question. A factorial experiment involving...
You may need to use the appropriate technology to answer this
question.
A factorial experiment involving two levels of factor A and
three levels of factor B resulted in the following data.
Factor B
Level 1
Level 2
Level 3
Factor A
Level 1
133
92
75
163
68
93
Level 2
127
125
120
97
103
136
Test for any significant main effects and any interaction. Use
α = 0.05.
Find the value of the test statistic for factor...
. Discuss the appropriate statistical technique that can explain the variation in the daily sales because...
. Discuss the appropriate statistical technique that can explain
the variation in the daily sales because of the daily inventory
holding cost Post-COVID-19 post COVID 19. Justify your answer.
Discuss the appropriate statistical technique that can explain the variation in the daily sales because of...
Discuss the appropriate statistical technique that can explain
the variation in the daily sales because of the daily inventory
holding cost Post-COVID-19 post COVID 19. Justify your
answer.
Using these results, complete the table below and then use your results to answer the questions...
Using these results, complete the table below and then use your
results to answer the questions that follow. (Please
remember to round all answers to two decimal places: 0.00 at each
step.) (23 points)
X
X-M
(X-M)2
1
14
-15.85
251.22
2
16
-13.85
191.82
3
18
-11.85
140.42
4
20
-9.85
97.02
5
23
-6.85
46.92
6
23
-6.85
46.92
7
25
-4.85
23.52
8
27
-2.85
8.12
9
28
-1.85
3.42
10
29
-0.85
0.72
11
30
0.15...
Use the Tornadoes Data and your statistical expertise to answer the questions: Is it reasonable to...
Use the Tornadoes Data and your statistical expertise to answer
the questions: Is it reasonable to claim that the number of
tornadoes in January will affect the number of tornados in
August?
1. What test/procedure did you perform?
a. One-sided t-test
b. Two-sided t-test
c. Regression
d. Confidence interval
2. What is the relevant P-Value/margin of
error?
a. 1.7981E-05
b. 8.17505E-06
c. 4.08753E-06
d. 0.05370006
e. None of these
3. Statistical Interpretation
a. Since P-value is very small we are...
Use the Tornadoes data and your statistical expertise to answer the questions: Is it reasonable to...
Use the Tornadoes data and your statistical expertise to answer
the questions: Is it reasonable to claim that on average there are
more than 45, tornado-related deaths in the month of April (per
year)?
9. What test/procedure did you perform?
a. One-sided t-test
b. Two-sided t-test
c. Regression
d. Confidence interval
10. What is the P-Value/margin of
error?
a. 0.723595771
b. 1.8
c. 0.007110117
d. 0.003555059
e. None of these
11. Statistical Interpretation
a. Since confidence interval does not include...
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